21089208840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1321379}}^1$

素因数の和:1321419

約数の個数: 128

約数和(自身を含む): 76111488000

約数和(自身を除く): 55022279160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15960, 1321379, 2642758, 3964137, 5285516, 6606895, 7928274, 9249653, 10571032, 13213790, 15856548, 18499306, 19820685, 25106201, 26427580, 27748959, 31713096, 36998612, 39641370, 46248265, 50212402, 52855160, 55497918, 73997224, 75318603, 79282740, 92496530, 100424804, 110995836, 125531005, 138744795, 150637206, 158565480, 175743407, 184993060, 200849608, 221991672, 251062010, 277489590, 301274412, 351486814, 369986120, 376593015, 502124020, 527230221, 554979180, 602548824, 702973628, 753186030, 878717035, 1004248040, 1054460442, 1109958360, 1405947256, 1506372060, 1757434070, 2108920884, 2636151105, 3012744120, 3514868140, 4217841768, 5272302210, 7029736280, 10544604420, 21089208840]

約数ペア:

[(1, 21089208840), (2, 10544604420), (3, 7029736280), (4, 5272302210), (5, 4217841768), (6, 3514868140), (7, 3012744120), (8, 2636151105), (10, 2108920884), (12, 1757434070), (14, 1506372060), (15, 1405947256), (19, 1109958360), (20, 1054460442), (21, 1004248040), (24, 878717035), (28, 753186030), (30, 702973628), (35, 602548824), (38, 554979180), (40, 527230221), (42, 502124020), (56, 376593015), (57, 369986120), (60, 351486814), (70, 301274412), (76, 277489590), (84, 251062010), (95, 221991672), (105, 200849608), (114, 184993060), (120, 175743407), (133, 158565480), (140, 150637206), (152, 138744795), (168, 125531005), (190, 110995836), (210, 100424804), (228, 92496530), (266, 79282740), (280, 75318603), (285, 73997224), (380, 55497918), (399, 52855160), (420, 50212402), (456, 46248265), (532, 39641370), (570, 36998612), (665, 31713096), (760, 27748959), (798, 26427580), (840, 25106201), (1064, 19820685), (1140, 18499306), (1330, 15856548), (1596, 13213790), (1995, 10571032), (2280, 9249653), (2660, 7928274), (3192, 6606895), (3990, 5285516), (5320, 3964137), (7980, 2642758), (15960, 1321379)]