21802768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2833}}^1$

素因数の和:2891

約数の個数: 40

約数和(自身を含む): 46738328

約数和(自身を除く): 24935560

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2833, 3848, 5666, 7696, 11332, 22664, 36829, 45328, 73658, 104821, 147316, 209642, 294632, 419284, 589264, 838568, 1362673, 1677136, 2725346, 5450692, 10901384, 21802768]

約数ペア:

[(1, 21802768), (2, 10901384), (4, 5450692), (8, 2725346), (13, 1677136), (16, 1362673), (26, 838568), (37, 589264), (52, 419284), (74, 294632), (104, 209642), (148, 147316), (208, 104821), (296, 73658), (481, 45328), (592, 36829), (962, 22664), (1924, 11332), (2833, 7696), (3848, 5666)]