21263346

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1021}}^1$

素因数の和:1131

約数の個数: 48

約数和(自身を含む): 50221080

約数和(自身を除く): 28957734

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 89, 117, 178, 234, 267, 534, 801, 1021, 1157, 1602, 2042, 2314, 3063, 3471, 6126, 6942, 9189, 10413, 13273, 18378, 20826, 26546, 39819, 79638, 90869, 119457, 181738, 238914, 272607, 545214, 817821, 1181297, 1635642, 2362594, 3543891, 7087782, 10631673, 21263346]

約数ペア:

[(1, 21263346), (2, 10631673), (3, 7087782), (6, 3543891), (9, 2362594), (13, 1635642), (18, 1181297), (26, 817821), (39, 545214), (78, 272607), (89, 238914), (117, 181738), (178, 119457), (234, 90869), (267, 79638), (534, 39819), (801, 26546), (1021, 20826), (1157, 18378), (1602, 13273), (2042, 10413), (2314, 9189), (3063, 6942), (3471, 6126)]