211231398

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1187}}^1$

素因数の和:1441

約数の個数: 64

約数和(自身を含む): 510935040

約数和(自身を除く): 299703642

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 223, 266, 399, 446, 669, 798, 1187, 1338, 1561, 2374, 3122, 3561, 4237, 4683, 7122, 8309, 8474, 9366, 12711, 16618, 22553, 24927, 25422, 29659, 45106, 49854, 59318, 67659, 88977, 135318, 157871, 177954, 264701, 315742, 473613, 529402, 794103, 947226, 1588206, 1852907, 3705814, 5029319, 5558721, 10058638, 11117442, 15087957, 30175914, 35205233, 70410466, 105615699, 211231398]

約数ペア:

[(1, 211231398), (2, 105615699), (3, 70410466), (6, 35205233), (7, 30175914), (14, 15087957), (19, 11117442), (21, 10058638), (38, 5558721), (42, 5029319), (57, 3705814), (114, 1852907), (133, 1588206), (223, 947226), (266, 794103), (399, 529402), (446, 473613), (669, 315742), (798, 264701), (1187, 177954), (1338, 157871), (1561, 135318), (2374, 88977), (3122, 67659), (3561, 59318), (4237, 49854), (4683, 45106), (7122, 29659), (8309, 25422), (8474, 24927), (9366, 22553), (12711, 16618)]