21416520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{563}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 64566720

約数和(自身を除く): 43150200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 317, 563, 634, 951, 1126, 1268, 1585, 1689, 1902, 2252, 2536, 2815, 3170, 3378, 3804, 4504, 4755, 5630, 6340, 6756, 7608, 8445, 9510, 11260, 12680, 13512, 16890, 19020, 22520, 33780, 38040, 67560, 178471, 356942, 535413, 713884, 892355, 1070826, 1427768, 1784710, 2141652, 2677065, 3569420, 4283304, 5354130, 7138840, 10708260, 21416520]

約数ペア:

[(1, 21416520), (2, 10708260), (3, 7138840), (4, 5354130), (5, 4283304), (6, 3569420), (8, 2677065), (10, 2141652), (12, 1784710), (15, 1427768), (20, 1070826), (24, 892355), (30, 713884), (40, 535413), (60, 356942), (120, 178471), (317, 67560), (563, 38040), (634, 33780), (951, 22520), (1126, 19020), (1268, 16890), (1585, 13512), (1689, 12680), (1902, 11260), (2252, 9510), (2536, 8445), (2815, 7608), (3170, 6756), (3378, 6340), (3804, 5630), (4504, 4755)]