21019380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5743}}^1$

素因数の和:5816

約数の個数: 48

約数和(自身を含む): 59829504

約数和(自身を除く): 38810124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5743, 11486, 17229, 22972, 28715, 34458, 57430, 68916, 86145, 114860, 172290, 344580, 350323, 700646, 1050969, 1401292, 1751615, 2101938, 3503230, 4203876, 5254845, 7006460, 10509690, 21019380]

約数ペア:

[(1, 21019380), (2, 10509690), (3, 7006460), (4, 5254845), (5, 4203876), (6, 3503230), (10, 2101938), (12, 1751615), (15, 1401292), (20, 1050969), (30, 700646), (60, 350323), (61, 344580), (122, 172290), (183, 114860), (244, 86145), (305, 68916), (366, 57430), (610, 34458), (732, 28715), (915, 22972), (1220, 17229), (1830, 11486), (3660, 5743)]