21673560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1657}}^1$

素因数の和:1780

約数の個数: 64

約数和(自身を含む): 65656800

約数和(自身を除く): 43983240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 109, 120, 218, 327, 436, 545, 654, 872, 1090, 1308, 1635, 1657, 2180, 2616, 3270, 3314, 4360, 4971, 6540, 6628, 8285, 9942, 13080, 13256, 16570, 19884, 24855, 33140, 39768, 49710, 66280, 99420, 180613, 198840, 361226, 541839, 722452, 903065, 1083678, 1444904, 1806130, 2167356, 2709195, 3612260, 4334712, 5418390, 7224520, 10836780, 21673560]

約数ペア:

[(1, 21673560), (2, 10836780), (3, 7224520), (4, 5418390), (5, 4334712), (6, 3612260), (8, 2709195), (10, 2167356), (12, 1806130), (15, 1444904), (20, 1083678), (24, 903065), (30, 722452), (40, 541839), (60, 361226), (109, 198840), (120, 180613), (218, 99420), (327, 66280), (436, 49710), (545, 39768), (654, 33140), (872, 24855), (1090, 19884), (1308, 16570), (1635, 13256), (1657, 13080), (2180, 9942), (2616, 8285), (3270, 6628), (3314, 6540), (4360, 4971)]