21267954

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^2\times {\mathrm{1091}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 49926240

約数和(自身を除く): 28658286

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 361, 513, 722, 1026, 1083, 1091, 2166, 2182, 3249, 3273, 6498, 6546, 9747, 9819, 19494, 19638, 20729, 29457, 41458, 58914, 62187, 124374, 186561, 373122, 393851, 559683, 787702, 1119366, 1181553, 2363106, 3544659, 7089318, 10633977, 21267954]

約数ペア:

[(1, 21267954), (2, 10633977), (3, 7089318), (6, 3544659), (9, 2363106), (18, 1181553), (19, 1119366), (27, 787702), (38, 559683), (54, 393851), (57, 373122), (114, 186561), (171, 124374), (342, 62187), (361, 58914), (513, 41458), (722, 29457), (1026, 20729), (1083, 19638), (1091, 19494), (2166, 9819), (2182, 9747), (3249, 6546), (3273, 6498)]