19756448

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1579}}^1$

素因数の和:1629

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 23244832

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 1564, 1579, 3128, 3158, 6256, 6316, 12512, 12632, 25264, 26843, 36317, 50528, 53686, 72634, 107372, 145268, 214744, 290536, 429488, 581072, 617389, 858976, 1162144, 1234778, 2469556, 4939112, 9878224, 19756448]

約数ペア:

[(1, 19756448), (2, 9878224), (4, 4939112), (8, 2469556), (16, 1234778), (17, 1162144), (23, 858976), (32, 617389), (34, 581072), (46, 429488), (68, 290536), (92, 214744), (136, 145268), (184, 107372), (272, 72634), (368, 53686), (391, 50528), (544, 36317), (736, 26843), (782, 25264), (1564, 12632), (1579, 12512), (3128, 6316), (3158, 6256)]