21039144

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2053}}^1$

素因数の和:2130

約数の個数: 64

約数和(自身を含む): 61127040

約数和(自身を除く): 40087896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 61, 84, 122, 168, 183, 244, 366, 427, 488, 732, 854, 1281, 1464, 1708, 2053, 2562, 3416, 4106, 5124, 6159, 8212, 10248, 12318, 14371, 16424, 24636, 28742, 43113, 49272, 57484, 86226, 114968, 125233, 172452, 250466, 344904, 375699, 500932, 751398, 876631, 1001864, 1502796, 1753262, 2629893, 3005592, 3506524, 5259786, 7013048, 10519572, 21039144]

約数ペア:

[(1, 21039144), (2, 10519572), (3, 7013048), (4, 5259786), (6, 3506524), (7, 3005592), (8, 2629893), (12, 1753262), (14, 1502796), (21, 1001864), (24, 876631), (28, 751398), (42, 500932), (56, 375699), (61, 344904), (84, 250466), (122, 172452), (168, 125233), (183, 114968), (244, 86226), (366, 57484), (427, 49272), (488, 43113), (732, 28742), (854, 24636), (1281, 16424), (1464, 14371), (1708, 12318), (2053, 10248), (2562, 8212), (3416, 6159), (4106, 5124)]