20601076

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:360

約数の個数: 36

約数和(自身を含む): 38991456

約数和(自身を除く): 18390380

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 251, 284, 289, 502, 578, 1004, 1156, 1207, 2414, 4267, 4828, 8534, 17068, 17821, 20519, 35642, 41038, 71284, 72539, 82076, 145078, 290156, 302957, 605914, 1211828, 5150269, 10300538, 20601076]

約数ペア:

[(1, 20601076), (2, 10300538), (4, 5150269), (17, 1211828), (34, 605914), (68, 302957), (71, 290156), (142, 145078), (251, 82076), (284, 72539), (289, 71284), (502, 41038), (578, 35642), (1004, 20519), (1156, 17821), (1207, 17068), (2414, 8534), (4267, 4828)]