21409320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7757}}^1$

素因数の和:7794

約数の個数: 64

約数和(自身を含む): 67029120

約数和(自身を除く): 45619800

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, 7757, 15514, 23271, 31028, 38785, 46542, 62056, 77570, 93084, 116355, 155140, 178411, 186168, 232710, 310280, 356822, 465420, 535233, 713644, 892055, 930840, 1070466, 1427288, 1784110, 2140932, 2676165, 3568220, 4281864, 5352330, 7136440, 10704660, 21409320]

約数ペア:

[(1, 21409320), (2, 10704660), (3, 7136440), (4, 5352330), (5, 4281864), (6, 3568220), (8, 2676165), (10, 2140932), (12, 1784110), (15, 1427288), (20, 1070466), (23, 930840), (24, 892055), (30, 713644), (40, 535233), (46, 465420), (60, 356822), (69, 310280), (92, 232710), (115, 186168), (120, 178411), (138, 155140), (184, 116355), (230, 93084), (276, 77570), (345, 62056), (460, 46542), (552, 38785), (690, 31028), (920, 23271), (1380, 15514), (2760, 7757)]