21670922

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 43352064

約数和(自身を除く): 21681142

約数列:

[1, 2, 7, 13, 14, 23, 26, 31, 46, 62, 91, 161, 167, 182, 217, 299, 322, 334, 403, 434, 598, 713, 806, 1169, 1426, 2093, 2171, 2338, 2821, 3841, 4186, 4342, 4991, 5177, 5642, 7682, 9269, 9982, 10354, 15197, 18538, 26887, 30394, 36239, 49933, 53774, 64883, 67301, 72478, 99866, 119071, 129766, 134602, 238142, 349531, 471107, 699062, 833497, 942214, 1547923, 1666994, 3095846, 10835461, 21670922]

約数ペア:

[(1, 21670922), (2, 10835461), (7, 3095846), (13, 1666994), (14, 1547923), (23, 942214), (26, 833497), (31, 699062), (46, 471107), (62, 349531), (91, 238142), (161, 134602), (167, 129766), (182, 119071), (217, 99866), (299, 72478), (322, 67301), (334, 64883), (403, 53774), (434, 49933), (598, 36239), (713, 30394), (806, 26887), (1169, 18538), (1426, 15197), (2093, 10354), (2171, 9982), (2338, 9269), (2821, 7682), (3841, 5642), (4186, 5177), (4342, 4991)]