21493304

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 27962056

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 107, 119, 136, 211, 214, 238, 422, 428, 476, 749, 844, 856, 952, 1477, 1498, 1688, 1819, 2954, 2996, 3587, 3638, 5908, 5992, 7174, 7276, 11816, 12733, 14348, 14552, 22577, 25109, 25466, 28696, 45154, 50218, 50932, 90308, 100436, 101864, 158039, 180616, 200872, 316078, 383809, 632156, 767618, 1264312, 1535236, 2686663, 3070472, 5373326, 10746652, 21493304]

約数ペア:

[(1, 21493304), (2, 10746652), (4, 5373326), (7, 3070472), (8, 2686663), (14, 1535236), (17, 1264312), (28, 767618), (34, 632156), (56, 383809), (68, 316078), (107, 200872), (119, 180616), (136, 158039), (211, 101864), (214, 100436), (238, 90308), (422, 50932), (428, 50218), (476, 45154), (749, 28696), (844, 25466), (856, 25109), (952, 22577), (1477, 14552), (1498, 14348), (1688, 12733), (1819, 11816), (2954, 7276), (2996, 7174), (3587, 5992), (3638, 5908)]