19840904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6343}}^1$

素因数の和:6389

約数の個数: 32

約数和(自身を含む): 41109120

約数和(自身を除く): 21268216

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6343, 12686, 25372, 50744, 107831, 145889, 215662, 291778, 431324, 583556, 862648, 1167112, 2480113, 4960226, 9920452, 19840904]

約数ペア:

[(1, 19840904), (2, 9920452), (4, 4960226), (8, 2480113), (17, 1167112), (23, 862648), (34, 583556), (46, 431324), (68, 291778), (92, 215662), (136, 145889), (184, 107831), (391, 50744), (782, 25372), (1564, 12686), (3128, 6343)]