21928768

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 56

約数和(自身を含む): 45637704

約数和(自身を除く): 23708936

約数列:

[1, 2, 4, 8, 16, 32, 41, 61, 64, 82, 122, 137, 164, 244, 274, 328, 488, 548, 656, 976, 1096, 1312, 1952, 2192, 2501, 2624, 3904, 4384, 5002, 5617, 8357, 8768, 10004, 11234, 16714, 20008, 22468, 33428, 40016, 44936, 66856, 80032, 89872, 133712, 160064, 179744, 267424, 342637, 359488, 534848, 685274, 1370548, 2741096, 5482192, 10964384, 21928768]

約数ペア:

[(1, 21928768), (2, 10964384), (4, 5482192), (8, 2741096), (16, 1370548), (32, 685274), (41, 534848), (61, 359488), (64, 342637), (82, 267424), (122, 179744), (137, 160064), (164, 133712), (244, 89872), (274, 80032), (328, 66856), (488, 44936), (548, 40016), (656, 33428), (976, 22468), (1096, 20008), (1312, 16714), (1952, 11234), (2192, 10004), (2501, 8768), (2624, 8357), (3904, 5617), (4384, 5002)]