21587724

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{853}}^1$

素因数の和:919

約数の個数: 72

約数和(自身を含む): 59062640

約数和(自身を除く): 37474916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 57, 74, 76, 111, 114, 148, 171, 222, 228, 333, 342, 444, 666, 684, 703, 853, 1332, 1406, 1706, 2109, 2559, 2812, 3412, 4218, 5118, 6327, 7677, 8436, 10236, 12654, 15354, 16207, 25308, 30708, 31561, 32414, 48621, 63122, 64828, 94683, 97242, 126244, 145863, 189366, 194484, 284049, 291726, 378732, 568098, 583452, 599659, 1136196, 1199318, 1798977, 2398636, 3597954, 5396931, 7195908, 10793862, 21587724]

約数ペア:

[(1, 21587724), (2, 10793862), (3, 7195908), (4, 5396931), (6, 3597954), (9, 2398636), (12, 1798977), (18, 1199318), (19, 1136196), (36, 599659), (37, 583452), (38, 568098), (57, 378732), (74, 291726), (76, 284049), (111, 194484), (114, 189366), (148, 145863), (171, 126244), (222, 97242), (228, 94683), (333, 64828), (342, 63122), (444, 48621), (666, 32414), (684, 31561), (703, 30708), (853, 25308), (1332, 16207), (1406, 15354), (1706, 12654), (2109, 10236), (2559, 8436), (2812, 7677), (3412, 6327), (4218, 5118)]