21830220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5273}}^1$

素因数の和:5311

約数の個数: 72

約数和(自身を含む): 69110496

約数和(自身を除く): 47280276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5273, 10546, 15819, 21092, 26365, 31638, 47457, 52730, 63276, 79095, 94914, 105460, 121279, 158190, 189828, 237285, 242558, 316380, 363837, 474570, 485116, 606395, 727674, 949140, 1091511, 1212790, 1455348, 1819185, 2183022, 2425580, 3638370, 4366044, 5457555, 7276740, 10915110, 21830220]

約数ペア:

[(1, 21830220), (2, 10915110), (3, 7276740), (4, 5457555), (5, 4366044), (6, 3638370), (9, 2425580), (10, 2183022), (12, 1819185), (15, 1455348), (18, 1212790), (20, 1091511), (23, 949140), (30, 727674), (36, 606395), (45, 485116), (46, 474570), (60, 363837), (69, 316380), (90, 242558), (92, 237285), (115, 189828), (138, 158190), (180, 121279), (207, 105460), (230, 94914), (276, 79095), (345, 63276), (414, 52730), (460, 47457), (690, 31638), (828, 26365), (1035, 21092), (1380, 15819), (2070, 10546), (4140, 5273)]