21113790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 53194752

約数和(自身を除く): 32080962

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 73, 93, 146, 155, 186, 219, 310, 311, 365, 438, 465, 622, 730, 930, 933, 1095, 1555, 1866, 2190, 2263, 3110, 4526, 4665, 6789, 9330, 9641, 11315, 13578, 19282, 22630, 22703, 28923, 33945, 45406, 48205, 57846, 67890, 68109, 96410, 113515, 136218, 144615, 227030, 289230, 340545, 681090, 703793, 1407586, 2111379, 3518965, 4222758, 7037930, 10556895, 21113790]

約数ペア:

[(1, 21113790), (2, 10556895), (3, 7037930), (5, 4222758), (6, 3518965), (10, 2111379), (15, 1407586), (30, 703793), (31, 681090), (62, 340545), (73, 289230), (93, 227030), (146, 144615), (155, 136218), (186, 113515), (219, 96410), (310, 68109), (311, 67890), (365, 57846), (438, 48205), (465, 45406), (622, 33945), (730, 28923), (930, 22703), (933, 22630), (1095, 19282), (1555, 13578), (1866, 11315), (2190, 9641), (2263, 9330), (3110, 6789), (4526, 4665)]