21280778816

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{20747}}^1$

素因数の和:20848

約数の個数: 112

約数和(自身を含む): 48568246272

約数和(自身を除く): 27287467456

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 47, 62, 64, 88, 94, 124, 176, 188, 248, 341, 352, 376, 496, 517, 682, 704, 752, 992, 1034, 1364, 1457, 1504, 1984, 2068, 2728, 2914, 3008, 4136, 5456, 5828, 8272, 10912, 11656, 16027, 16544, 20747, 21824, 23312, 32054, 33088, 41494, 46624, 64108, 82988, 93248, 128216, 165976, 228217, 256432, 331952, 456434, 512864, 643157, 663904, 912868, 975109, 1025728, 1286314, 1327808, 1825736, 1950218, 2572628, 3651472, 3900436, 5145256, 7074727, 7302944, 7800872, 10290512, 10726199, 14149454, 14605888, 15601744, 20581024, 21452398, 28298908, 30228379, 31203488, 41162048, 42904796, 56597816, 60456758, 62406976, 85809592, 113195632, 120913516, 171619184, 226391264, 241827032, 332512169, 343238368, 452782528, 483654064, 665024338, 686476736, 967308128, 1330048676, 1934616256, 2660097352, 5320194704, 10640389408, 21280778816]

約数ペア:

[(1, 21280778816), (2, 10640389408), (4, 5320194704), (8, 2660097352), (11, 1934616256), (16, 1330048676), (22, 967308128), (31, 686476736), (32, 665024338), (44, 483654064), (47, 452782528), (62, 343238368), (64, 332512169), (88, 241827032), (94, 226391264), (124, 171619184), (176, 120913516), (188, 113195632), (248, 85809592), (341, 62406976), (352, 60456758), (376, 56597816), (496, 42904796), (517, 41162048), (682, 31203488), (704, 30228379), (752, 28298908), (992, 21452398), (1034, 20581024), (1364, 15601744), (1457, 14605888), (1504, 14149454), (1984, 10726199), (2068, 10290512), (2728, 7800872), (2914, 7302944), (3008, 7074727), (4136, 5145256), (5456, 3900436), (5828, 3651472), (8272, 2572628), (10912, 1950218), (11656, 1825736), (16027, 1327808), (16544, 1286314), (20747, 1025728), (21824, 975109), (23312, 912868), (32054, 663904), (33088, 643157), (41494, 512864), (46624, 456434), (64108, 331952), (82988, 256432), (93248, 228217), (128216, 165976)]