21972132

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 72159360

約数和(自身を除く): 50187228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 19, 21, 26, 28, 36, 38, 39, 42, 52, 57, 63, 76, 78, 84, 91, 114, 117, 126, 133, 156, 171, 182, 228, 234, 247, 252, 266, 273, 342, 353, 364, 399, 468, 494, 532, 546, 684, 706, 741, 798, 819, 988, 1059, 1092, 1197, 1412, 1482, 1596, 1638, 1729, 2118, 2223, 2394, 2471, 2964, 3177, 3276, 3458, 4236, 4446, 4589, 4788, 4942, 5187, 6354, 6707, 6916, 7413, 8892, 9178, 9884, 10374, 12708, 13414, 13767, 14826, 15561, 18356, 20121, 20748, 22239, 26828, 27534, 29652, 31122, 32123, 40242, 41301, 44478, 46949, 55068, 60363, 62244, 64246, 80484, 82602, 87191, 88956, 93898, 96369, 120726, 128492, 140847, 165204, 174382, 187796, 192738, 241452, 261573, 281694, 289107, 348764, 385476, 422541, 523146, 563388, 578214, 610337, 784719, 845082, 1046292, 1156428, 1220674, 1569438, 1690164, 1831011, 2441348, 3138876, 3662022, 5493033, 7324044, 10986066, 21972132]

約数ペア:

[(1, 21972132), (2, 10986066), (3, 7324044), (4, 5493033), (6, 3662022), (7, 3138876), (9, 2441348), (12, 1831011), (13, 1690164), (14, 1569438), (18, 1220674), (19, 1156428), (21, 1046292), (26, 845082), (28, 784719), (36, 610337), (38, 578214), (39, 563388), (42, 523146), (52, 422541), (57, 385476), (63, 348764), (76, 289107), (78, 281694), (84, 261573), (91, 241452), (114, 192738), (117, 187796), (126, 174382), (133, 165204), (156, 140847), (171, 128492), (182, 120726), (228, 96369), (234, 93898), (247, 88956), (252, 87191), (266, 82602), (273, 80484), (342, 64246), (353, 62244), (364, 60363), (399, 55068), (468, 46949), (494, 44478), (532, 41301), (546, 40242), (684, 32123), (706, 31122), (741, 29652), (798, 27534), (819, 26828), (988, 22239), (1059, 20748), (1092, 20121), (1197, 18356), (1412, 15561), (1482, 14826), (1596, 13767), (1638, 13414), (1729, 12708), (2118, 10374), (2223, 9884), (2394, 9178), (2471, 8892), (2964, 7413), (3177, 6916), (3276, 6707), (3458, 6354), (4236, 5187), (4446, 4942), (4589, 4788)]