20964632

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4289}}^1$

素因数の和:4355

約数の個数: 32

約数和(自身を含む): 43243200

約数和(自身を除く): 22278568

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4289, 4888, 8578, 17156, 34312, 55757, 111514, 201583, 223028, 403166, 446056, 806332, 1612664, 2620579, 5241158, 10482316, 20964632]

約数ペア:

[(1, 20964632), (2, 10482316), (4, 5241158), (8, 2620579), (13, 1612664), (26, 806332), (47, 446056), (52, 403166), (94, 223028), (104, 201583), (188, 111514), (376, 55757), (611, 34312), (1222, 17156), (2444, 8578), (4289, 4888)]