21546855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 44928000

約数和(自身を除く): 23381145

約数列:

[1, 3, 5, 9, 11, 15, 19, 29, 33, 45, 55, 57, 79, 87, 95, 99, 145, 165, 171, 209, 237, 261, 285, 319, 395, 435, 495, 551, 627, 711, 855, 869, 957, 1045, 1185, 1305, 1501, 1595, 1653, 1881, 2291, 2607, 2755, 2871, 3135, 3555, 4345, 4503, 4785, 4959, 6061, 6873, 7505, 7821, 8265, 9405, 11455, 13035, 13509, 14355, 16511, 18183, 20619, 22515, 24795, 25201, 30305, 34365, 39105, 43529, 49533, 54549, 67545, 75603, 82555, 90915, 103095, 126005, 130587, 148599, 217645, 226809, 247665, 272745, 378015, 391761, 478819, 652935, 742995, 1134045, 1436457, 1958805, 2394095, 4309371, 7182285, 21546855]

約数ペア:

[(1, 21546855), (3, 7182285), (5, 4309371), (9, 2394095), (11, 1958805), (15, 1436457), (19, 1134045), (29, 742995), (33, 652935), (45, 478819), (55, 391761), (57, 378015), (79, 272745), (87, 247665), (95, 226809), (99, 217645), (145, 148599), (165, 130587), (171, 126005), (209, 103095), (237, 90915), (261, 82555), (285, 75603), (319, 67545), (395, 54549), (435, 49533), (495, 43529), (551, 39105), (627, 34365), (711, 30305), (855, 25201), (869, 24795), (957, 22515), (1045, 20619), (1185, 18183), (1305, 16511), (1501, 14355), (1595, 13509), (1653, 13035), (1881, 11455), (2291, 9405), (2607, 8265), (2755, 7821), (2871, 7505), (3135, 6873), (3555, 6061), (4345, 4959), (4503, 4785)]