21664664

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3251}}^1$

素因数の和:3288

約数の個数: 48

約数和(自身を含む): 50048280

約数和(自身を除く): 28383616

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3251, 3332, 6502, 6664, 13004, 22757, 26008, 45514, 55267, 91028, 110534, 159299, 182056, 221068, 318598, 386869, 442136, 637196, 773738, 1274392, 1547476, 2708083, 3094952, 5416166, 10832332, 21664664]

約数ペア:

[(1, 21664664), (2, 10832332), (4, 5416166), (7, 3094952), (8, 2708083), (14, 1547476), (17, 1274392), (28, 773738), (34, 637196), (49, 442136), (56, 386869), (68, 318598), (98, 221068), (119, 182056), (136, 159299), (196, 110534), (238, 91028), (392, 55267), (476, 45514), (833, 26008), (952, 22757), (1666, 13004), (3251, 6664), (3332, 6502)]