21532168

素因数分解:

$2^3\times 7^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:112

約数の個数: 80

約数和(自身を含む): 50418000

約数和(自身を除く): 28885832

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 59, 76, 98, 118, 133, 152, 196, 236, 266, 343, 392, 413, 472, 532, 686, 826, 931, 1064, 1121, 1372, 1652, 1862, 2242, 2401, 2744, 2891, 3304, 3724, 4484, 4802, 5782, 6517, 7448, 7847, 8968, 9604, 11564, 13034, 15694, 19208, 20237, 23128, 26068, 31388, 40474, 45619, 52136, 54929, 62776, 80948, 91238, 109858, 141659, 161896, 182476, 219716, 283318, 364952, 384503, 439432, 566636, 769006, 1133272, 1538012, 2691521, 3076024, 5383042, 10766084, 21532168]

約数ペア:

[(1, 21532168), (2, 10766084), (4, 5383042), (7, 3076024), (8, 2691521), (14, 1538012), (19, 1133272), (28, 769006), (38, 566636), (49, 439432), (56, 384503), (59, 364952), (76, 283318), (98, 219716), (118, 182476), (133, 161896), (152, 141659), (196, 109858), (236, 91238), (266, 80948), (343, 62776), (392, 54929), (413, 52136), (472, 45619), (532, 40474), (686, 31388), (826, 26068), (931, 23128), (1064, 20237), (1121, 19208), (1372, 15694), (1652, 13034), (1862, 11564), (2242, 9604), (2401, 8968), (2744, 7847), (2891, 7448), (3304, 6517), (3724, 5782), (4484, 4802)]