20921712

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:966

約数の個数: 80

約数和(自身を含む): 62710272

約数和(自身を除く): 41788560

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 71, 84, 112, 142, 168, 213, 284, 336, 426, 497, 568, 852, 877, 994, 1136, 1491, 1704, 1754, 1988, 2631, 2982, 3408, 3508, 3976, 5262, 5964, 6139, 7016, 7952, 10524, 11928, 12278, 14032, 18417, 21048, 23856, 24556, 36834, 42096, 49112, 62267, 73668, 98224, 124534, 147336, 186801, 249068, 294672, 373602, 435869, 498136, 747204, 871738, 996272, 1307607, 1494408, 1743476, 2615214, 2988816, 3486952, 5230428, 6973904, 10460856, 20921712]

約数ペア:

[(1, 20921712), (2, 10460856), (3, 6973904), (4, 5230428), (6, 3486952), (7, 2988816), (8, 2615214), (12, 1743476), (14, 1494408), (16, 1307607), (21, 996272), (24, 871738), (28, 747204), (42, 498136), (48, 435869), (56, 373602), (71, 294672), (84, 249068), (112, 186801), (142, 147336), (168, 124534), (213, 98224), (284, 73668), (336, 62267), (426, 49112), (497, 42096), (568, 36834), (852, 24556), (877, 23856), (994, 21048), (1136, 18417), (1491, 14032), (1704, 12278), (1754, 11928), (1988, 10524), (2631, 7952), (2982, 7016), (3408, 6139), (3508, 5964), (3976, 5262)]