20331724

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 42932736

約数和(自身を除く): 22601012

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 131, 161, 241, 262, 322, 482, 524, 644, 917, 964, 1687, 1834, 3013, 3374, 3668, 5543, 6026, 6748, 11086, 12052, 21091, 22172, 31571, 38801, 42182, 63142, 77602, 84364, 126284, 155204, 220997, 441994, 726133, 883988, 1452266, 2904532, 5082931, 10165862, 20331724]

約数ペア:

[(1, 20331724), (2, 10165862), (4, 5082931), (7, 2904532), (14, 1452266), (23, 883988), (28, 726133), (46, 441994), (92, 220997), (131, 155204), (161, 126284), (241, 84364), (262, 77602), (322, 63142), (482, 42182), (524, 38801), (644, 31571), (917, 22172), (964, 21091), (1687, 12052), (1834, 11086), (3013, 6748), (3374, 6026), (3668, 5543)]