21000510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12281}}^1$

素因数の和:12313

約数の個数: 48

約数和(自身を含む): 57479760

約数和(自身を除く): 36479250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 12281, 24562, 36843, 61405, 73686, 110529, 122810, 184215, 221058, 233339, 368430, 466678, 552645, 700017, 1105290, 1166695, 1400034, 2100051, 2333390, 3500085, 4200102, 7000170, 10500255, 21000510]

約数ペア:

[(1, 21000510), (2, 10500255), (3, 7000170), (5, 4200102), (6, 3500085), (9, 2333390), (10, 2100051), (15, 1400034), (18, 1166695), (19, 1105290), (30, 700017), (38, 552645), (45, 466678), (57, 368430), (90, 233339), (95, 221058), (114, 184215), (171, 122810), (190, 110529), (285, 73686), (342, 61405), (570, 36843), (855, 24562), (1710, 12281)]