19996452

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1087}}^1$

素因数の和:1177

約数の個数: 72

約数和(自身を含む): 58612736

約数和(自身を除く): 38616284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 73, 84, 126, 146, 219, 252, 292, 438, 511, 657, 876, 1022, 1087, 1314, 1533, 2044, 2174, 2628, 3066, 3261, 4348, 4599, 6132, 6522, 7609, 9198, 9783, 13044, 15218, 18396, 19566, 22827, 30436, 39132, 45654, 68481, 79351, 91308, 136962, 158702, 238053, 273924, 317404, 476106, 555457, 714159, 952212, 1110914, 1428318, 1666371, 2221828, 2856636, 3332742, 4999113, 6665484, 9998226, 19996452]

約数ペア:

[(1, 19996452), (2, 9998226), (3, 6665484), (4, 4999113), (6, 3332742), (7, 2856636), (9, 2221828), (12, 1666371), (14, 1428318), (18, 1110914), (21, 952212), (28, 714159), (36, 555457), (42, 476106), (63, 317404), (73, 273924), (84, 238053), (126, 158702), (146, 136962), (219, 91308), (252, 79351), (292, 68481), (438, 45654), (511, 39132), (657, 30436), (876, 22827), (1022, 19566), (1087, 18396), (1314, 15218), (1533, 13044), (2044, 9783), (2174, 9198), (2628, 7609), (3066, 6522), (3261, 6132), (4348, 4599)]