21248520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1567}}^1$

素因数の和:1694

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 43102200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 113, 120, 226, 339, 452, 565, 678, 904, 1130, 1356, 1567, 1695, 2260, 2712, 3134, 3390, 4520, 4701, 6268, 6780, 7835, 9402, 12536, 13560, 15670, 18804, 23505, 31340, 37608, 47010, 62680, 94020, 177071, 188040, 354142, 531213, 708284, 885355, 1062426, 1416568, 1770710, 2124852, 2656065, 3541420, 4249704, 5312130, 7082840, 10624260, 21248520]

約数ペア:

[(1, 21248520), (2, 10624260), (3, 7082840), (4, 5312130), (5, 4249704), (6, 3541420), (8, 2656065), (10, 2124852), (12, 1770710), (15, 1416568), (20, 1062426), (24, 885355), (30, 708284), (40, 531213), (60, 354142), (113, 188040), (120, 177071), (226, 94020), (339, 62680), (452, 47010), (565, 37608), (678, 31340), (904, 23505), (1130, 18804), (1356, 15670), (1567, 13560), (1695, 12536), (2260, 9402), (2712, 7835), (3134, 6780), (3390, 6268), (4520, 4701)]