21204300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5437}}^1$

素因数の和:5467

約数の個数: 72

約数和(自身を含む): 66082576

約数和(自身を除く): 44878276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5437, 10874, 16311, 21748, 27185, 32622, 54370, 65244, 70681, 81555, 108740, 135925, 141362, 163110, 212043, 271850, 282724, 326220, 353405, 407775, 424086, 543700, 706810, 815550, 848172, 1060215, 1413620, 1631100, 1767025, 2120430, 3534050, 4240860, 5301075, 7068100, 10602150, 21204300]

約数ペア:

[(1, 21204300), (2, 10602150), (3, 7068100), (4, 5301075), (5, 4240860), (6, 3534050), (10, 2120430), (12, 1767025), (13, 1631100), (15, 1413620), (20, 1060215), (25, 848172), (26, 815550), (30, 706810), (39, 543700), (50, 424086), (52, 407775), (60, 353405), (65, 326220), (75, 282724), (78, 271850), (100, 212043), (130, 163110), (150, 141362), (156, 135925), (195, 108740), (260, 81555), (300, 70681), (325, 65244), (390, 54370), (650, 32622), (780, 27185), (975, 21748), (1300, 16311), (1950, 10874), (3900, 5437)]