21955472

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 53996544

約数和(自身を除く): 32041072

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 71, 77, 88, 112, 142, 154, 176, 251, 284, 308, 497, 502, 568, 616, 781, 994, 1004, 1136, 1232, 1562, 1757, 1988, 2008, 2761, 3124, 3514, 3976, 4016, 5467, 5522, 6248, 7028, 7952, 10934, 11044, 12496, 14056, 17821, 19327, 21868, 22088, 28112, 35642, 38654, 43736, 44176, 71284, 77308, 87472, 124747, 142568, 154616, 196031, 249494, 285136, 309232, 392062, 498988, 784124, 997976, 1372217, 1568248, 1995952, 2744434, 3136496, 5488868, 10977736, 21955472]

約数ペア:

[(1, 21955472), (2, 10977736), (4, 5488868), (7, 3136496), (8, 2744434), (11, 1995952), (14, 1568248), (16, 1372217), (22, 997976), (28, 784124), (44, 498988), (56, 392062), (71, 309232), (77, 285136), (88, 249494), (112, 196031), (142, 154616), (154, 142568), (176, 124747), (251, 87472), (284, 77308), (308, 71284), (497, 44176), (502, 43736), (568, 38654), (616, 35642), (781, 28112), (994, 22088), (1004, 21868), (1136, 19327), (1232, 17821), (1562, 14056), (1757, 12496), (1988, 11044), (2008, 10934), (2761, 7952), (3124, 7028), (3514, 6248), (3976, 5522), (4016, 5467)]