21425950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1$

素因数の和:326

約数の個数: 96

約数和(自身を含む): 52121664

約数和(自身を除く): 30695714

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 25, 26, 34, 35, 50, 65, 70, 85, 91, 119, 130, 170, 175, 182, 221, 238, 277, 325, 350, 425, 442, 455, 554, 595, 650, 850, 910, 1105, 1190, 1385, 1547, 1939, 2210, 2275, 2770, 2975, 3094, 3601, 3878, 4550, 4709, 5525, 5950, 6925, 7202, 7735, 9418, 9695, 11050, 13850, 15470, 18005, 19390, 23545, 25207, 32963, 36010, 38675, 47090, 48475, 50414, 61217, 65926, 77350, 90025, 96950, 117725, 122434, 126035, 164815, 180050, 235450, 252070, 306085, 329630, 428519, 612170, 630175, 824075, 857038, 1260350, 1530425, 1648150, 2142595, 3060850, 4285190, 10712975, 21425950]

約数ペア:

[(1, 21425950), (2, 10712975), (5, 4285190), (7, 3060850), (10, 2142595), (13, 1648150), (14, 1530425), (17, 1260350), (25, 857038), (26, 824075), (34, 630175), (35, 612170), (50, 428519), (65, 329630), (70, 306085), (85, 252070), (91, 235450), (119, 180050), (130, 164815), (170, 126035), (175, 122434), (182, 117725), (221, 96950), (238, 90025), (277, 77350), (325, 65926), (350, 61217), (425, 50414), (442, 48475), (455, 47090), (554, 38675), (595, 36010), (650, 32963), (850, 25207), (910, 23545), (1105, 19390), (1190, 18005), (1385, 15470), (1547, 13850), (1939, 11050), (2210, 9695), (2275, 9418), (2770, 7735), (2975, 7202), (3094, 6925), (3601, 5950), (3878, 5525), (4550, 4709)]