21314260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 32029100

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 41, 44, 55, 68, 82, 85, 110, 139, 164, 170, 187, 205, 220, 278, 340, 374, 410, 451, 556, 695, 697, 748, 820, 902, 935, 1390, 1394, 1529, 1804, 1870, 2255, 2363, 2780, 2788, 3058, 3485, 3740, 4510, 4726, 5699, 6116, 6970, 7645, 7667, 9020, 9452, 11398, 11815, 13940, 15290, 15334, 22796, 23630, 25993, 28495, 30580, 30668, 38335, 47260, 51986, 56990, 62689, 76670, 96883, 103972, 113980, 125378, 129965, 153340, 193766, 250756, 259930, 313445, 387532, 484415, 519860, 626890, 968830, 1065713, 1253780, 1937660, 2131426, 4262852, 5328565, 10657130, 21314260]

約数ペア:

[(1, 21314260), (2, 10657130), (4, 5328565), (5, 4262852), (10, 2131426), (11, 1937660), (17, 1253780), (20, 1065713), (22, 968830), (34, 626890), (41, 519860), (44, 484415), (55, 387532), (68, 313445), (82, 259930), (85, 250756), (110, 193766), (139, 153340), (164, 129965), (170, 125378), (187, 113980), (205, 103972), (220, 96883), (278, 76670), (340, 62689), (374, 56990), (410, 51986), (451, 47260), (556, 38335), (695, 30668), (697, 30580), (748, 28495), (820, 25993), (902, 23630), (935, 22796), (1390, 15334), (1394, 15290), (1529, 13940), (1804, 11815), (1870, 11398), (2255, 9452), (2363, 9020), (2780, 7667), (2788, 7645), (3058, 6970), (3485, 6116), (3740, 5699), (4510, 4726)]