21121668

素因数分解:

$2^2\times 3^3\times {\mathrm{223}}^1\times {\mathrm{877}}^1$

素因数の和:1113

約数の個数: 48

約数和(自身を含む): 55068160

約数和(自身を除く): 33946492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 223, 446, 669, 877, 892, 1338, 1754, 2007, 2631, 2676, 3508, 4014, 5262, 6021, 7893, 8028, 10524, 12042, 15786, 23679, 24084, 31572, 47358, 94716, 195571, 391142, 586713, 782284, 1173426, 1760139, 2346852, 3520278, 5280417, 7040556, 10560834, 21121668]

約数ペア:

[(1, 21121668), (2, 10560834), (3, 7040556), (4, 5280417), (6, 3520278), (9, 2346852), (12, 1760139), (18, 1173426), (27, 782284), (36, 586713), (54, 391142), (108, 195571), (223, 94716), (446, 47358), (669, 31572), (877, 24084), (892, 23679), (1338, 15786), (1754, 12042), (2007, 10524), (2631, 8028), (2676, 7893), (3508, 6021), (4014, 5262)]