21532560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1831}}^1$

素因数の和:1861

約数の個数: 120

約数和(自身を含む): 77691456

約数和(自身を除く): 56158896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1831, 1960, 2352, 2940, 3662, 3920, 5493, 5880, 7324, 9155, 10986, 11760, 12817, 14648, 18310, 21972, 25634, 27465, 29296, 36620, 38451, 43944, 51268, 54930, 64085, 73240, 76902, 87888, 89719, 102536, 109860, 128170, 146480, 153804, 179438, 192255, 205072, 219720, 256340, 269157, 307608, 358876, 384510, 439440, 448595, 512680, 538314, 615216, 717752, 769020, 897190, 1025360, 1076628, 1345785, 1435504, 1538040, 1794380, 2153256, 2691570, 3076080, 3588760, 4306512, 5383140, 7177520, 10766280, 21532560]

約数ペア:

[(1, 21532560), (2, 10766280), (3, 7177520), (4, 5383140), (5, 4306512), (6, 3588760), (7, 3076080), (8, 2691570), (10, 2153256), (12, 1794380), (14, 1538040), (15, 1435504), (16, 1345785), (20, 1076628), (21, 1025360), (24, 897190), (28, 769020), (30, 717752), (35, 615216), (40, 538314), (42, 512680), (48, 448595), (49, 439440), (56, 384510), (60, 358876), (70, 307608), (80, 269157), (84, 256340), (98, 219720), (105, 205072), (112, 192255), (120, 179438), (140, 153804), (147, 146480), (168, 128170), (196, 109860), (210, 102536), (240, 89719), (245, 87888), (280, 76902), (294, 73240), (336, 64085), (392, 54930), (420, 51268), (490, 43944), (560, 38451), (588, 36620), (735, 29296), (784, 27465), (840, 25634), (980, 21972), (1176, 18310), (1470, 14648), (1680, 12817), (1831, 11760), (1960, 10986), (2352, 9155), (2940, 7324), (3662, 5880), (3920, 5493)]