21857886

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1257

約数の個数: 48

約数和(自身を含む): 51010128

約数和(自身を除く): 29152242

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 61, 102, 122, 153, 183, 306, 366, 549, 1037, 1098, 1171, 2074, 2342, 3111, 3513, 6222, 7026, 9333, 10539, 18666, 19907, 21078, 39814, 59721, 71431, 119442, 142862, 179163, 214293, 358326, 428586, 642879, 1214327, 1285758, 2428654, 3642981, 7285962, 10928943, 21857886]

約数ペア:

[(1, 21857886), (2, 10928943), (3, 7285962), (6, 3642981), (9, 2428654), (17, 1285758), (18, 1214327), (34, 642879), (51, 428586), (61, 358326), (102, 214293), (122, 179163), (153, 142862), (183, 119442), (306, 71431), (366, 59721), (549, 39814), (1037, 21078), (1098, 19907), (1171, 18666), (2074, 10539), (2342, 9333), (3111, 7026), (3513, 6222)]