21154446

素因数分解:

$2^1\times 3^4\times {\mathrm{67}}^1\times {\mathrm{1949}}^1$

素因数の和:2030

約数の個数: 40

約数和(自身を含む): 48133800

約数和(自身を除く): 26979354

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 81, 134, 162, 201, 402, 603, 1206, 1809, 1949, 3618, 3898, 5427, 5847, 10854, 11694, 17541, 35082, 52623, 105246, 130583, 157869, 261166, 315738, 391749, 783498, 1175247, 2350494, 3525741, 7051482, 10577223, 21154446]

約数ペア:

[(1, 21154446), (2, 10577223), (3, 7051482), (6, 3525741), (9, 2350494), (18, 1175247), (27, 783498), (54, 391749), (67, 315738), (81, 261166), (134, 157869), (162, 130583), (201, 105246), (402, 52623), (603, 35082), (1206, 17541), (1809, 11694), (1949, 10854), (3618, 5847), (3898, 5427)]