21355404

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 38855796

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 59, 62, 84, 93, 118, 124, 139, 177, 186, 217, 236, 278, 354, 372, 413, 417, 434, 556, 651, 708, 826, 834, 868, 973, 1239, 1302, 1652, 1668, 1829, 1946, 2478, 2604, 2919, 3658, 3892, 4309, 4956, 5487, 5838, 7316, 8201, 8618, 10974, 11676, 12803, 12927, 16402, 17236, 21948, 24603, 25606, 25854, 30163, 32804, 38409, 49206, 51212, 51708, 57407, 60326, 76818, 90489, 98412, 114814, 120652, 153636, 172221, 180978, 229628, 254231, 344442, 361956, 508462, 688884, 762693, 1016924, 1525386, 1779617, 3050772, 3559234, 5338851, 7118468, 10677702, 21355404]

約数ペア:

[(1, 21355404), (2, 10677702), (3, 7118468), (4, 5338851), (6, 3559234), (7, 3050772), (12, 1779617), (14, 1525386), (21, 1016924), (28, 762693), (31, 688884), (42, 508462), (59, 361956), (62, 344442), (84, 254231), (93, 229628), (118, 180978), (124, 172221), (139, 153636), (177, 120652), (186, 114814), (217, 98412), (236, 90489), (278, 76818), (354, 60326), (372, 57407), (413, 51708), (417, 51212), (434, 49206), (556, 38409), (651, 32804), (708, 30163), (826, 25854), (834, 25606), (868, 24603), (973, 21948), (1239, 17236), (1302, 16402), (1652, 12927), (1668, 12803), (1829, 11676), (1946, 10974), (2478, 8618), (2604, 8201), (2919, 7316), (3658, 5838), (3892, 5487), (4309, 4956)]