21101948

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 46577664

約数和(自身を除く): 25475716

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 49, 62, 92, 98, 124, 151, 161, 196, 217, 302, 322, 434, 604, 644, 713, 868, 1057, 1127, 1426, 1519, 2114, 2254, 2852, 3038, 3473, 4228, 4508, 4681, 4991, 6076, 6946, 7399, 9362, 9982, 13892, 14798, 18724, 19964, 24311, 29596, 32767, 34937, 48622, 65534, 69874, 97244, 107663, 131068, 139748, 170177, 215326, 229369, 340354, 430652, 458738, 680708, 753641, 917476, 1507282, 3014564, 5275487, 10550974, 21101948]

約数ペア:

[(1, 21101948), (2, 10550974), (4, 5275487), (7, 3014564), (14, 1507282), (23, 917476), (28, 753641), (31, 680708), (46, 458738), (49, 430652), (62, 340354), (92, 229369), (98, 215326), (124, 170177), (151, 139748), (161, 131068), (196, 107663), (217, 97244), (302, 69874), (322, 65534), (434, 48622), (604, 34937), (644, 32767), (713, 29596), (868, 24311), (1057, 19964), (1127, 18724), (1426, 14798), (1519, 13892), (2114, 9982), (2254, 9362), (2852, 7399), (3038, 6946), (3473, 6076), (4228, 4991), (4508, 4681)]