19403408

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{769}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 40101600

約数和(自身を除く): 20698192

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 769, 1328, 1538, 1577, 3076, 3154, 6152, 6308, 12304, 12616, 14611, 25232, 29222, 58444, 63827, 116888, 127654, 233776, 255308, 510616, 1021232, 1212713, 2425426, 4850852, 9701704, 19403408]

約数ペア:

[(1, 19403408), (2, 9701704), (4, 4850852), (8, 2425426), (16, 1212713), (19, 1021232), (38, 510616), (76, 255308), (83, 233776), (152, 127654), (166, 116888), (304, 63827), (332, 58444), (664, 29222), (769, 25232), (1328, 14611), (1538, 12616), (1577, 12304), (3076, 6308), (3154, 6152)]