18984756

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 33300204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 83, 84, 98, 147, 166, 196, 249, 294, 332, 389, 498, 581, 588, 778, 996, 1162, 1167, 1556, 1743, 2324, 2334, 2723, 3486, 4067, 4668, 5446, 6972, 8134, 8169, 10892, 12201, 16268, 16338, 19061, 24402, 32287, 32676, 38122, 48804, 57183, 64574, 76244, 96861, 114366, 129148, 193722, 226009, 228732, 387444, 452018, 678027, 904036, 1356054, 1582063, 2712108, 3164126, 4746189, 6328252, 9492378, 18984756]

約数ペア:

[(1, 18984756), (2, 9492378), (3, 6328252), (4, 4746189), (6, 3164126), (7, 2712108), (12, 1582063), (14, 1356054), (21, 904036), (28, 678027), (42, 452018), (49, 387444), (83, 228732), (84, 226009), (98, 193722), (147, 129148), (166, 114366), (196, 96861), (249, 76244), (294, 64574), (332, 57183), (389, 48804), (498, 38122), (581, 32676), (588, 32287), (778, 24402), (996, 19061), (1162, 16338), (1167, 16268), (1556, 12201), (1743, 10892), (2324, 8169), (2334, 8134), (2723, 6972), (3486, 5446), (4067, 4668)]