21392290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 22930910

約数列:

[1, 2, 5, 10, 17, 19, 34, 37, 38, 74, 85, 95, 170, 179, 185, 190, 323, 358, 370, 629, 646, 703, 895, 1258, 1406, 1615, 1790, 3043, 3145, 3230, 3401, 3515, 6086, 6290, 6623, 6802, 7030, 11951, 13246, 15215, 17005, 23902, 30430, 33115, 34010, 57817, 59755, 66230, 112591, 115634, 119510, 125837, 225182, 251674, 289085, 562955, 578170, 629185, 1125910, 1258370, 2139229, 4278458, 10696145, 21392290]

約数ペア:

[(1, 21392290), (2, 10696145), (5, 4278458), (10, 2139229), (17, 1258370), (19, 1125910), (34, 629185), (37, 578170), (38, 562955), (74, 289085), (85, 251674), (95, 225182), (170, 125837), (179, 119510), (185, 115634), (190, 112591), (323, 66230), (358, 59755), (370, 57817), (629, 34010), (646, 33115), (703, 30430), (895, 23902), (1258, 17005), (1406, 15215), (1615, 13246), (1790, 11951), (3043, 7030), (3145, 6802), (3230, 6623), (3401, 6290), (3515, 6086)]