21589204

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 48821640

約数和(自身を除く): 27232436

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 49, 52, 74, 91, 98, 148, 182, 196, 229, 259, 364, 458, 481, 518, 637, 916, 962, 1036, 1274, 1603, 1813, 1924, 2548, 2977, 3206, 3367, 3626, 5954, 6412, 6734, 7252, 8473, 11221, 11908, 13468, 16946, 20839, 22442, 23569, 33892, 41678, 44884, 47138, 59311, 83356, 94276, 110149, 118622, 145873, 220298, 237244, 291746, 415177, 440596, 583492, 771043, 830354, 1542086, 1660708, 3084172, 5397301, 10794602, 21589204]

約数ペア:

[(1, 21589204), (2, 10794602), (4, 5397301), (7, 3084172), (13, 1660708), (14, 1542086), (26, 830354), (28, 771043), (37, 583492), (49, 440596), (52, 415177), (74, 291746), (91, 237244), (98, 220298), (148, 145873), (182, 118622), (196, 110149), (229, 94276), (259, 83356), (364, 59311), (458, 47138), (481, 44884), (518, 41678), (637, 33892), (916, 23569), (962, 22442), (1036, 20839), (1274, 16946), (1603, 13468), (1813, 11908), (1924, 11221), (2548, 8473), (2977, 7252), (3206, 6734), (3367, 6412), (3626, 5954)]