21904074

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 52713600

約数和(自身を除く): 30809526

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 37, 38, 54, 57, 74, 111, 114, 171, 222, 333, 342, 513, 577, 666, 703, 999, 1026, 1154, 1406, 1731, 1998, 2109, 3462, 4218, 5193, 6327, 10386, 10963, 12654, 15579, 18981, 21349, 21926, 31158, 32889, 37962, 42698, 64047, 65778, 98667, 128094, 192141, 197334, 296001, 384282, 405631, 576423, 592002, 811262, 1152846, 1216893, 2433786, 3650679, 7301358, 10952037, 21904074]

約数ペア:

[(1, 21904074), (2, 10952037), (3, 7301358), (6, 3650679), (9, 2433786), (18, 1216893), (19, 1152846), (27, 811262), (37, 592002), (38, 576423), (54, 405631), (57, 384282), (74, 296001), (111, 197334), (114, 192141), (171, 128094), (222, 98667), (333, 65778), (342, 64047), (513, 42698), (577, 37962), (666, 32889), (703, 31158), (999, 21926), (1026, 21349), (1154, 18981), (1406, 15579), (1731, 12654), (1998, 10963), (2109, 10386), (3462, 6327), (4218, 5193)]