20552452

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:416

約数の個数: 36

約数和(自身を含む): 38959536

約数和(自身を除く): 18407084

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 331, 361, 662, 722, 817, 1324, 1444, 1634, 3268, 6289, 12578, 14233, 15523, 25156, 28466, 31046, 56932, 62092, 119491, 238982, 270427, 477964, 540854, 1081708, 5138113, 10276226, 20552452]

約数ペア:

[(1, 20552452), (2, 10276226), (4, 5138113), (19, 1081708), (38, 540854), (43, 477964), (76, 270427), (86, 238982), (172, 119491), (331, 62092), (361, 56932), (662, 31046), (722, 28466), (817, 25156), (1324, 15523), (1444, 14233), (1634, 12578), (3268, 6289)]