18835553984

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{1367}}^1\times {\mathrm{16561}}^1$

素因数の和:17953

約数の個数: 56

約数和(自身を含む): 40283818848

約数和(自身を除く): 21448264864

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 1367, 2734, 5468, 10936, 16561, 17771, 21872, 33122, 35542, 43744, 66244, 71084, 87488, 132488, 142168, 215293, 264976, 284336, 430586, 529952, 568672, 861172, 1059904, 1137344, 1722344, 3444688, 6889376, 13778752, 22638887, 45277774, 90555548, 181111096, 294305531, 362222192, 588611062, 724444384, 1177222124, 1448888768, 2354444248, 4708888496, 9417776992, 18835553984]

約数ペア:

[(1, 18835553984), (2, 9417776992), (4, 4708888496), (8, 2354444248), (13, 1448888768), (16, 1177222124), (26, 724444384), (32, 588611062), (52, 362222192), (64, 294305531), (104, 181111096), (208, 90555548), (416, 45277774), (832, 22638887), (1367, 13778752), (2734, 6889376), (5468, 3444688), (10936, 1722344), (16561, 1137344), (17771, 1059904), (21872, 861172), (33122, 568672), (35542, 529952), (43744, 430586), (66244, 284336), (71084, 264976), (87488, 215293), (132488, 142168)]