21266952

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{457}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 61115520

約数和(自身を除く): 39848568

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 277, 457, 554, 831, 914, 1108, 1371, 1662, 1828, 1939, 2216, 2742, 3199, 3324, 3656, 3878, 5484, 5817, 6398, 6648, 7756, 9597, 10968, 11634, 12796, 15512, 19194, 23268, 25592, 38388, 46536, 76776, 126589, 253178, 379767, 506356, 759534, 886123, 1012712, 1519068, 1772246, 2658369, 3038136, 3544492, 5316738, 7088984, 10633476, 21266952]

約数ペア:

[(1, 21266952), (2, 10633476), (3, 7088984), (4, 5316738), (6, 3544492), (7, 3038136), (8, 2658369), (12, 1772246), (14, 1519068), (21, 1012712), (24, 886123), (28, 759534), (42, 506356), (56, 379767), (84, 253178), (168, 126589), (277, 76776), (457, 46536), (554, 38388), (831, 25592), (914, 23268), (1108, 19194), (1371, 15512), (1662, 12796), (1828, 11634), (1939, 10968), (2216, 9597), (2742, 7756), (3199, 6648), (3324, 6398), (3656, 5817), (3878, 5484)]