19139421

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 30220288

約数和(自身を除く): 11080867

約数列:

[1, 3, 7, 21, 61, 67, 183, 201, 223, 427, 469, 669, 1281, 1407, 1561, 4087, 4683, 12261, 13603, 14941, 28609, 40809, 44823, 85827, 95221, 104587, 285663, 313761, 911401, 2734203, 6379807, 19139421]

約数ペア:

[(1, 19139421), (3, 6379807), (7, 2734203), (21, 911401), (61, 313761), (67, 285663), (183, 104587), (201, 95221), (223, 85827), (427, 44823), (469, 40809), (669, 28609), (1281, 14941), (1407, 13603), (1561, 12261), (4087, 4683)]