21921536

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{941}}^1$

素因数の和:977

約数の個数: 72

約数和(自身を含む): 53912544

約数和(自身を除く): 31991008

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 941, 1456, 1664, 1792, 1882, 2912, 3328, 3764, 5824, 6587, 7528, 11648, 12233, 13174, 15056, 23296, 24466, 26348, 30112, 48932, 52696, 60224, 85631, 97864, 105392, 120448, 171262, 195728, 210784, 240896, 342524, 391456, 421568, 685048, 782912, 843136, 1370096, 1565824, 1686272, 2740192, 3131648, 5480384, 10960768, 21921536]

約数ペア:

[(1, 21921536), (2, 10960768), (4, 5480384), (7, 3131648), (8, 2740192), (13, 1686272), (14, 1565824), (16, 1370096), (26, 843136), (28, 782912), (32, 685048), (52, 421568), (56, 391456), (64, 342524), (91, 240896), (104, 210784), (112, 195728), (128, 171262), (182, 120448), (208, 105392), (224, 97864), (256, 85631), (364, 60224), (416, 52696), (448, 48932), (728, 30112), (832, 26348), (896, 24466), (941, 23296), (1456, 15056), (1664, 13174), (1792, 12233), (1882, 11648), (2912, 7528), (3328, 6587), (3764, 5824)]