21806850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:292

約数の個数: 96

約数和(自身を含む): 59621184

約数和(自身を除く): 37814334

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 53, 65, 75, 78, 106, 130, 150, 159, 195, 211, 265, 318, 325, 390, 422, 530, 633, 650, 689, 795, 975, 1055, 1266, 1325, 1378, 1590, 1950, 2067, 2110, 2650, 2743, 3165, 3445, 3975, 4134, 5275, 5486, 6330, 6890, 7950, 8229, 10335, 10550, 11183, 13715, 15825, 16458, 17225, 20670, 22366, 27430, 31650, 33549, 34450, 41145, 51675, 55915, 67098, 68575, 82290, 103350, 111830, 137150, 145379, 167745, 205725, 279575, 290758, 335490, 411450, 436137, 559150, 726895, 838725, 872274, 1453790, 1677450, 2180685, 3634475, 4361370, 7268950, 10903425, 21806850]

約数ペア:

[(1, 21806850), (2, 10903425), (3, 7268950), (5, 4361370), (6, 3634475), (10, 2180685), (13, 1677450), (15, 1453790), (25, 872274), (26, 838725), (30, 726895), (39, 559150), (50, 436137), (53, 411450), (65, 335490), (75, 290758), (78, 279575), (106, 205725), (130, 167745), (150, 145379), (159, 137150), (195, 111830), (211, 103350), (265, 82290), (318, 68575), (325, 67098), (390, 55915), (422, 51675), (530, 41145), (633, 34450), (650, 33549), (689, 31650), (795, 27430), (975, 22366), (1055, 20670), (1266, 17225), (1325, 16458), (1378, 15825), (1590, 13715), (1950, 11183), (2067, 10550), (2110, 10335), (2650, 8229), (2743, 7950), (3165, 6890), (3445, 6330), (3975, 5486), (4134, 5275)]