21425640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2927}}^1$

素因数の和:3002

約数の個数: 64

約数和(自身を含む): 65352960

約数和(自身を除く): 43927320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2927, 3660, 5854, 7320, 8781, 11708, 14635, 17562, 23416, 29270, 35124, 43905, 58540, 70248, 87810, 117080, 175620, 178547, 351240, 357094, 535641, 714188, 892735, 1071282, 1428376, 1785470, 2142564, 2678205, 3570940, 4285128, 5356410, 7141880, 10712820, 21425640]

約数ペア:

[(1, 21425640), (2, 10712820), (3, 7141880), (4, 5356410), (5, 4285128), (6, 3570940), (8, 2678205), (10, 2142564), (12, 1785470), (15, 1428376), (20, 1071282), (24, 892735), (30, 714188), (40, 535641), (60, 357094), (61, 351240), (120, 178547), (122, 175620), (183, 117080), (244, 87810), (305, 70248), (366, 58540), (488, 43905), (610, 35124), (732, 29270), (915, 23416), (1220, 17562), (1464, 14635), (1830, 11708), (2440, 8781), (2927, 7320), (3660, 5854)]