21521040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89671}}^1$

素因数の和:89687

約数の個数: 40

約数和(自身を含む): 66715968

約数和(自身を除く): 45194928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89671, 179342, 269013, 358684, 448355, 538026, 717368, 896710, 1076052, 1345065, 1434736, 1793420, 2152104, 2690130, 3586840, 4304208, 5380260, 7173680, 10760520, 21521040]

約数ペア:

[(1, 21521040), (2, 10760520), (3, 7173680), (4, 5380260), (5, 4304208), (6, 3586840), (8, 2690130), (10, 2152104), (12, 1793420), (15, 1434736), (16, 1345065), (20, 1076052), (24, 896710), (30, 717368), (40, 538026), (48, 448355), (60, 358684), (80, 269013), (120, 179342), (240, 89671)]