21409752

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9803}}^1$

素因数の和:9832

約数の個数: 64

約数和(自身を含む): 65882880

約数和(自身を除く): 44473128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 9803, 19606, 29409, 39212, 58818, 68621, 78424, 117636, 127439, 137242, 205863, 235272, 254878, 274484, 382317, 411726, 509756, 548968, 764634, 823452, 892073, 1019512, 1529268, 1646904, 1784146, 2676219, 3058536, 3568292, 5352438, 7136584, 10704876, 21409752]

約数ペア:

[(1, 21409752), (2, 10704876), (3, 7136584), (4, 5352438), (6, 3568292), (7, 3058536), (8, 2676219), (12, 1784146), (13, 1646904), (14, 1529268), (21, 1019512), (24, 892073), (26, 823452), (28, 764634), (39, 548968), (42, 509756), (52, 411726), (56, 382317), (78, 274484), (84, 254878), (91, 235272), (104, 205863), (156, 137242), (168, 127439), (182, 117636), (273, 78424), (312, 68621), (364, 58818), (546, 39212), (728, 29409), (1092, 19606), (2184, 9803)]