21538350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2122

約数の個数: 72

約数和(自身を含む): 60411312

約数和(自身を除く): 38872962

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 30, 45, 46, 50, 69, 75, 90, 115, 138, 150, 207, 225, 230, 345, 414, 450, 575, 690, 1035, 1150, 1725, 2070, 2081, 3450, 4162, 5175, 6243, 10350, 10405, 12486, 18729, 20810, 31215, 37458, 47863, 52025, 62430, 93645, 95726, 104050, 143589, 156075, 187290, 239315, 287178, 312150, 430767, 468225, 478630, 717945, 861534, 936450, 1196575, 1435890, 2153835, 2393150, 3589725, 4307670, 7179450, 10769175, 21538350]

約数ペア:

[(1, 21538350), (2, 10769175), (3, 7179450), (5, 4307670), (6, 3589725), (9, 2393150), (10, 2153835), (15, 1435890), (18, 1196575), (23, 936450), (25, 861534), (30, 717945), (45, 478630), (46, 468225), (50, 430767), (69, 312150), (75, 287178), (90, 239315), (115, 187290), (138, 156075), (150, 143589), (207, 104050), (225, 95726), (230, 93645), (345, 62430), (414, 52025), (450, 47863), (575, 37458), (690, 31215), (1035, 20810), (1150, 18729), (1725, 12486), (2070, 10405), (2081, 10350), (3450, 6243), (4162, 5175)]