21981432

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1571}}^1$

素因数の和:1644

約数の個数: 64

約数和(自身を含む): 61119360

約数和(自身を除く): 39137928

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 53, 66, 88, 106, 132, 159, 212, 264, 318, 424, 583, 636, 1166, 1272, 1571, 1749, 2332, 3142, 3498, 4664, 4713, 6284, 6996, 9426, 12568, 13992, 17281, 18852, 34562, 37704, 51843, 69124, 83263, 103686, 138248, 166526, 207372, 249789, 333052, 414744, 499578, 666104, 915893, 999156, 1831786, 1998312, 2747679, 3663572, 5495358, 7327144, 10990716, 21981432]

約数ペア:

[(1, 21981432), (2, 10990716), (3, 7327144), (4, 5495358), (6, 3663572), (8, 2747679), (11, 1998312), (12, 1831786), (22, 999156), (24, 915893), (33, 666104), (44, 499578), (53, 414744), (66, 333052), (88, 249789), (106, 207372), (132, 166526), (159, 138248), (212, 103686), (264, 83263), (318, 69124), (424, 51843), (583, 37704), (636, 34562), (1166, 18852), (1272, 17281), (1571, 13992), (1749, 12568), (2332, 9426), (3142, 6996), (3498, 6284), (4664, 4713)]