21894990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1865

約数の個数: 64

約数和(自身を含む): 58447872

約数和(自身を除く): 36552882

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1811, 2015, 2418, 3622, 4030, 5433, 6045, 9055, 10866, 12090, 18110, 23543, 27165, 47086, 54330, 56141, 70629, 112282, 117715, 141258, 168423, 235430, 280705, 336846, 353145, 561410, 706290, 729833, 842115, 1459666, 1684230, 2189499, 3649165, 4378998, 7298330, 10947495, 21894990]

約数ペア:

[(1, 21894990), (2, 10947495), (3, 7298330), (5, 4378998), (6, 3649165), (10, 2189499), (13, 1684230), (15, 1459666), (26, 842115), (30, 729833), (31, 706290), (39, 561410), (62, 353145), (65, 336846), (78, 280705), (93, 235430), (130, 168423), (155, 141258), (186, 117715), (195, 112282), (310, 70629), (390, 56141), (403, 54330), (465, 47086), (806, 27165), (930, 23543), (1209, 18110), (1811, 12090), (2015, 10866), (2418, 9055), (3622, 6045), (4030, 5433)]