21176520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1619}}^1$

素因数の和:1742

約数の個数: 64

約数和(自身を含む): 64152000

約数和(自身を除く): 42975480

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, 1619, 1635, 2180, 2616, 3238, 3270, 4360, 4857, 6476, 6540, 8095, 9714, 12952, 13080, 16190, 19428, 24285, 32380, 38856, 48570, 64760, 97140, 176471, 194280, 352942, 529413, 705884, 882355, 1058826, 1411768, 1764710, 2117652, 2647065, 3529420, 4235304, 5294130, 7058840, 10588260, 21176520]

約数ペア:

[(1, 21176520), (2, 10588260), (3, 7058840), (4, 5294130), (5, 4235304), (6, 3529420), (8, 2647065), (10, 2117652), (12, 1764710), (15, 1411768), (20, 1058826), (24, 882355), (30, 705884), (40, 529413), (60, 352942), (109, 194280), (120, 176471), (218, 97140), (327, 64760), (436, 48570), (545, 38856), (654, 32380), (872, 24285), (1090, 19428), (1308, 16190), (1619, 13080), (1635, 12952), (2180, 9714), (2616, 8095), (3238, 6540), (3270, 6476), (4360, 4857)]