21712920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7867}}^1$

素因数の和:7904

約数の個数: 64

約数和(自身を含む): 67979520

約数和(自身を除く): 46266600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7867, 15734, 23601, 31468, 39335, 47202, 62936, 78670, 94404, 118005, 157340, 180941, 188808, 236010, 314680, 361882, 472020, 542823, 723764, 904705, 944040, 1085646, 1447528, 1809410, 2171292, 2714115, 3618820, 4342584, 5428230, 7237640, 10856460, 21712920]

約数ペア:

[(1, 21712920), (2, 10856460), (3, 7237640), (4, 5428230), (5, 4342584), (6, 3618820), (8, 2714115), (10, 2171292), (12, 1809410), (15, 1447528), (20, 1085646), (23, 944040), (24, 904705), (30, 723764), (40, 542823), (46, 472020), (60, 361882), (69, 314680), (92, 236010), (115, 188808), (120, 180941), (138, 157340), (184, 118005), (230, 94404), (276, 78670), (345, 62936), (460, 47202), (552, 39335), (690, 31468), (920, 23601), (1380, 15734), (2760, 7867)]