21335328

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:599

約数の個数: 144

約数和(自身を含む): 73120320

約数和(自身を除く): 51784992

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 32, 36, 38, 42, 48, 56, 57, 63, 72, 76, 84, 96, 112, 114, 126, 133, 144, 152, 168, 171, 224, 228, 252, 266, 288, 304, 336, 342, 399, 456, 504, 532, 557, 608, 672, 684, 798, 912, 1008, 1064, 1114, 1197, 1368, 1596, 1671, 1824, 2016, 2128, 2228, 2394, 2736, 3192, 3342, 3899, 4256, 4456, 4788, 5013, 5472, 6384, 6684, 7798, 8912, 9576, 10026, 10583, 11697, 12768, 13368, 15596, 17824, 19152, 20052, 21166, 23394, 26736, 31192, 31749, 35091, 38304, 40104, 42332, 46788, 53472, 62384, 63498, 70182, 74081, 80208, 84664, 93576, 95247, 124768, 126996, 140364, 148162, 160416, 169328, 187152, 190494, 222243, 253992, 280728, 296324, 338656, 374304, 380988, 444486, 507984, 561456, 592648, 666729, 761976, 888972, 1015968, 1122912, 1185296, 1333458, 1523952, 1777944, 2370592, 2666916, 3047904, 3555888, 5333832, 7111776, 10667664, 21335328]

約数ペア:

[(1, 21335328), (2, 10667664), (3, 7111776), (4, 5333832), (6, 3555888), (7, 3047904), (8, 2666916), (9, 2370592), (12, 1777944), (14, 1523952), (16, 1333458), (18, 1185296), (19, 1122912), (21, 1015968), (24, 888972), (28, 761976), (32, 666729), (36, 592648), (38, 561456), (42, 507984), (48, 444486), (56, 380988), (57, 374304), (63, 338656), (72, 296324), (76, 280728), (84, 253992), (96, 222243), (112, 190494), (114, 187152), (126, 169328), (133, 160416), (144, 148162), (152, 140364), (168, 126996), (171, 124768), (224, 95247), (228, 93576), (252, 84664), (266, 80208), (288, 74081), (304, 70182), (336, 63498), (342, 62384), (399, 53472), (456, 46788), (504, 42332), (532, 40104), (557, 38304), (608, 35091), (672, 31749), (684, 31192), (798, 26736), (912, 23394), (1008, 21166), (1064, 20052), (1114, 19152), (1197, 17824), (1368, 15596), (1596, 13368), (1671, 12768), (1824, 11697), (2016, 10583), (2128, 10026), (2228, 9576), (2394, 8912), (2736, 7798), (3192, 6684), (3342, 6384), (3899, 5472), (4256, 5013), (4456, 4788)]