20739796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{233}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 48275136

約数和(自身を除く): 27535340

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 233, 238, 289, 308, 374, 466, 476, 578, 748, 932, 1156, 1309, 1631, 2023, 2563, 2618, 3179, 3262, 3961, 4046, 5126, 5236, 6358, 6524, 7922, 8092, 10252, 12716, 15844, 17941, 22253, 27727, 35882, 43571, 44506, 55454, 67337, 71764, 87142, 89012, 110908, 134674, 174284, 269348, 304997, 471359, 609994, 740707, 942718, 1219988, 1481414, 1885436, 2962828, 5184949, 10369898, 20739796]

約数ペア:

[(1, 20739796), (2, 10369898), (4, 5184949), (7, 2962828), (11, 1885436), (14, 1481414), (17, 1219988), (22, 942718), (28, 740707), (34, 609994), (44, 471359), (68, 304997), (77, 269348), (119, 174284), (154, 134674), (187, 110908), (233, 89012), (238, 87142), (289, 71764), (308, 67337), (374, 55454), (466, 44506), (476, 43571), (578, 35882), (748, 27727), (932, 22253), (1156, 17941), (1309, 15844), (1631, 12716), (2023, 10252), (2563, 8092), (2618, 7922), (3179, 6524), (3262, 6358), (3961, 5236), (4046, 5126)]