21557538

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{383}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 26964702

約数列:

[1, 2, 3, 6, 9, 18, 53, 59, 106, 118, 159, 177, 318, 354, 383, 477, 531, 766, 954, 1062, 1149, 2298, 3127, 3447, 6254, 6894, 9381, 18762, 20299, 22597, 28143, 40598, 45194, 56286, 60897, 67791, 121794, 135582, 182691, 203373, 365382, 406746, 1197641, 2395282, 3592923, 7185846, 10778769, 21557538]

約数ペア:

[(1, 21557538), (2, 10778769), (3, 7185846), (6, 3592923), (9, 2395282), (18, 1197641), (53, 406746), (59, 365382), (106, 203373), (118, 182691), (159, 135582), (177, 121794), (318, 67791), (354, 60897), (383, 56286), (477, 45194), (531, 40598), (766, 28143), (954, 22597), (1062, 20299), (1149, 18762), (2298, 9381), (3127, 6894), (3447, 6254)]