19827135

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 36211968

約数和(自身を除く): 16384833

約数列:

[1, 3, 5, 9, 15, 31, 45, 61, 93, 155, 183, 233, 279, 305, 465, 549, 699, 915, 1165, 1395, 1891, 2097, 2745, 3495, 5673, 7223, 9455, 10485, 14213, 17019, 21669, 28365, 36115, 42639, 65007, 71065, 85095, 108345, 127917, 213195, 325035, 440603, 639585, 1321809, 2203015, 3965427, 6609045, 19827135]

約数ペア:

[(1, 19827135), (3, 6609045), (5, 3965427), (9, 2203015), (15, 1321809), (31, 639585), (45, 440603), (61, 325035), (93, 213195), (155, 127917), (183, 108345), (233, 85095), (279, 71065), (305, 65007), (465, 42639), (549, 36115), (699, 28365), (915, 21669), (1165, 17019), (1395, 14213), (1891, 10485), (2097, 9455), (2745, 7223), (3495, 5673)]