19935136

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{277}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 42664104

約数和(自身を除く): 22728968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 173, 208, 277, 346, 416, 554, 692, 1108, 1384, 2216, 2249, 2768, 3601, 4432, 4498, 5536, 7202, 8864, 8996, 14404, 17992, 28808, 35984, 47921, 57616, 71968, 95842, 115232, 191684, 383368, 622973, 766736, 1245946, 1533472, 2491892, 4983784, 9967568, 19935136]

約数ペア:

[(1, 19935136), (2, 9967568), (4, 4983784), (8, 2491892), (13, 1533472), (16, 1245946), (26, 766736), (32, 622973), (52, 383368), (104, 191684), (173, 115232), (208, 95842), (277, 71968), (346, 57616), (416, 47921), (554, 35984), (692, 28808), (1108, 17992), (1384, 14404), (2216, 8996), (2249, 8864), (2768, 7202), (3601, 5536), (4432, 4498)]