20965336

素因数分解:

$2^3\times 7^2\times {\mathrm{79}}^1\times {\mathrm{677}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 46375200

約数和(自身を除く): 25409864

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 79, 98, 158, 196, 316, 392, 553, 632, 677, 1106, 1354, 2212, 2708, 3871, 4424, 4739, 5416, 7742, 9478, 15484, 18956, 30968, 33173, 37912, 53483, 66346, 106966, 132692, 213932, 265384, 374381, 427864, 748762, 1497524, 2620667, 2995048, 5241334, 10482668, 20965336]

約数ペア:

[(1, 20965336), (2, 10482668), (4, 5241334), (7, 2995048), (8, 2620667), (14, 1497524), (28, 748762), (49, 427864), (56, 374381), (79, 265384), (98, 213932), (158, 132692), (196, 106966), (316, 66346), (392, 53483), (553, 37912), (632, 33173), (677, 30968), (1106, 18956), (1354, 15484), (2212, 9478), (2708, 7742), (3871, 5416), (4424, 4739)]