19916384

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1239

約数の個数: 48

約数和(自身を含む): 42892416

約数和(自身を除く): 22976032

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 1181, 2108, 2362, 4216, 4724, 8432, 9448, 16864, 18896, 20077, 36611, 37792, 40154, 73222, 80308, 146444, 160616, 292888, 321232, 585776, 622387, 642464, 1171552, 1244774, 2489548, 4979096, 9958192, 19916384]

約数ペア:

[(1, 19916384), (2, 9958192), (4, 4979096), (8, 2489548), (16, 1244774), (17, 1171552), (31, 642464), (32, 622387), (34, 585776), (62, 321232), (68, 292888), (124, 160616), (136, 146444), (248, 80308), (272, 73222), (496, 40154), (527, 37792), (544, 36611), (992, 20077), (1054, 18896), (1181, 16864), (2108, 9448), (2362, 8432), (4216, 4724)]