21965856

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 66495744

約数和(自身を除く): 44529888

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 32, 33, 44, 48, 61, 62, 66, 88, 93, 96, 121, 122, 124, 132, 176, 183, 186, 242, 244, 248, 264, 341, 352, 363, 366, 372, 484, 488, 496, 528, 671, 682, 726, 732, 744, 968, 976, 992, 1023, 1056, 1342, 1364, 1452, 1464, 1488, 1891, 1936, 1952, 2013, 2046, 2684, 2728, 2904, 2928, 2976, 3751, 3782, 3872, 4026, 4092, 5368, 5456, 5673, 5808, 5856, 7381, 7502, 7564, 8052, 8184, 10736, 10912, 11253, 11346, 11616, 14762, 15004, 15128, 16104, 16368, 20801, 21472, 22143, 22506, 22692, 29524, 30008, 30256, 32208, 32736, 41602, 44286, 45012, 45384, 59048, 60016, 60512, 62403, 64416, 83204, 88572, 90024, 90768, 118096, 120032, 124806, 166408, 177144, 180048, 181536, 228811, 236192, 249612, 332816, 354288, 360096, 457622, 499224, 665632, 686433, 708576, 915244, 998448, 1372866, 1830488, 1996896, 2745732, 3660976, 5491464, 7321952, 10982928, 21965856]

約数ペア:

[(1, 21965856), (2, 10982928), (3, 7321952), (4, 5491464), (6, 3660976), (8, 2745732), (11, 1996896), (12, 1830488), (16, 1372866), (22, 998448), (24, 915244), (31, 708576), (32, 686433), (33, 665632), (44, 499224), (48, 457622), (61, 360096), (62, 354288), (66, 332816), (88, 249612), (93, 236192), (96, 228811), (121, 181536), (122, 180048), (124, 177144), (132, 166408), (176, 124806), (183, 120032), (186, 118096), (242, 90768), (244, 90024), (248, 88572), (264, 83204), (341, 64416), (352, 62403), (363, 60512), (366, 60016), (372, 59048), (484, 45384), (488, 45012), (496, 44286), (528, 41602), (671, 32736), (682, 32208), (726, 30256), (732, 30008), (744, 29524), (968, 22692), (976, 22506), (992, 22143), (1023, 21472), (1056, 20801), (1342, 16368), (1364, 16104), (1452, 15128), (1464, 15004), (1488, 14762), (1891, 11616), (1936, 11346), (1952, 11253), (2013, 10912), (2046, 10736), (2684, 8184), (2728, 8052), (2904, 7564), (2928, 7502), (2976, 7381), (3751, 5856), (3782, 5808), (3872, 5673), (4026, 5456), (4092, 5368)]