21646508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 44198784

約数和(自身を除く): 22552276

約数列:

[1, 2, 4, 13, 17, 26, 34, 47, 52, 68, 94, 188, 221, 442, 521, 611, 799, 884, 1042, 1222, 1598, 2084, 2444, 3196, 6773, 8857, 10387, 13546, 17714, 20774, 24487, 27092, 35428, 41548, 48974, 97948, 115141, 230282, 318331, 416279, 460564, 636662, 832558, 1273324, 1665116, 5411627, 10823254, 21646508]

約数ペア:

[(1, 21646508), (2, 10823254), (4, 5411627), (13, 1665116), (17, 1273324), (26, 832558), (34, 636662), (47, 460564), (52, 416279), (68, 318331), (94, 230282), (188, 115141), (221, 97948), (442, 48974), (521, 41548), (611, 35428), (799, 27092), (884, 24487), (1042, 20774), (1222, 17714), (1598, 13546), (2084, 10387), (2444, 8857), (3196, 6773)]