20916252

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:472

約数の個数: 96

約数和(自身を含む): 62988800

約数和(自身を除く): 42072548

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 73, 84, 108, 126, 146, 189, 219, 252, 292, 378, 379, 438, 511, 657, 756, 758, 876, 1022, 1137, 1314, 1516, 1533, 1971, 2044, 2274, 2628, 2653, 3066, 3411, 3942, 4548, 4599, 5306, 6132, 6822, 7884, 7959, 9198, 10233, 10612, 13644, 13797, 15918, 18396, 20466, 23877, 27594, 27667, 31836, 40932, 47754, 55188, 55334, 71631, 83001, 95508, 110668, 143262, 166002, 193669, 249003, 286524, 332004, 387338, 498006, 581007, 747009, 774676, 996012, 1162014, 1494018, 1743021, 2324028, 2988036, 3486042, 5229063, 6972084, 10458126, 20916252]

約数ペア:

[(1, 20916252), (2, 10458126), (3, 6972084), (4, 5229063), (6, 3486042), (7, 2988036), (9, 2324028), (12, 1743021), (14, 1494018), (18, 1162014), (21, 996012), (27, 774676), (28, 747009), (36, 581007), (42, 498006), (54, 387338), (63, 332004), (73, 286524), (84, 249003), (108, 193669), (126, 166002), (146, 143262), (189, 110668), (219, 95508), (252, 83001), (292, 71631), (378, 55334), (379, 55188), (438, 47754), (511, 40932), (657, 31836), (756, 27667), (758, 27594), (876, 23877), (1022, 20466), (1137, 18396), (1314, 15918), (1516, 13797), (1533, 13644), (1971, 10612), (2044, 10233), (2274, 9198), (2628, 7959), (2653, 7884), (3066, 6822), (3411, 6132), (3942, 5306), (4548, 4599)]