19577744

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:623

約数の個数: 40

約数和(自身を含む): 40497408

約数和(自身を除く): 20919664

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 167, 272, 334, 431, 668, 862, 1336, 1724, 2672, 2839, 3448, 5678, 6896, 7327, 11356, 14654, 22712, 29308, 45424, 58616, 71977, 117232, 143954, 287908, 575816, 1151632, 1223609, 2447218, 4894436, 9788872, 19577744]

約数ペア:

[(1, 19577744), (2, 9788872), (4, 4894436), (8, 2447218), (16, 1223609), (17, 1151632), (34, 575816), (68, 287908), (136, 143954), (167, 117232), (272, 71977), (334, 58616), (431, 45424), (668, 29308), (862, 22712), (1336, 14654), (1724, 11356), (2672, 7327), (2839, 6896), (3448, 5678)]