21104520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{443}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 63616320

約数和(自身を除く): 42511800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 397, 443, 794, 886, 1191, 1329, 1588, 1772, 1985, 2215, 2382, 2658, 3176, 3544, 3970, 4430, 4764, 5316, 5955, 6645, 7940, 8860, 9528, 10632, 11910, 13290, 15880, 17720, 23820, 26580, 47640, 53160, 175871, 351742, 527613, 703484, 879355, 1055226, 1406968, 1758710, 2110452, 2638065, 3517420, 4220904, 5276130, 7034840, 10552260, 21104520]

約数ペア:

[(1, 21104520), (2, 10552260), (3, 7034840), (4, 5276130), (5, 4220904), (6, 3517420), (8, 2638065), (10, 2110452), (12, 1758710), (15, 1406968), (20, 1055226), (24, 879355), (30, 703484), (40, 527613), (60, 351742), (120, 175871), (397, 53160), (443, 47640), (794, 26580), (886, 23820), (1191, 17720), (1329, 15880), (1588, 13290), (1772, 11910), (1985, 10632), (2215, 9528), (2382, 8860), (2658, 7940), (3176, 6645), (3544, 5955), (3970, 5316), (4430, 4764)]