21313554

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 47861760

約数和(自身を除く): 26548206

約数列:

[1, 2, 3, 6, 19, 31, 37, 38, 57, 62, 74, 93, 111, 114, 163, 186, 222, 326, 489, 589, 703, 978, 1147, 1178, 1406, 1767, 2109, 2294, 3097, 3441, 3534, 4218, 5053, 6031, 6194, 6882, 9291, 10106, 12062, 15159, 18093, 18582, 21793, 30318, 36186, 43586, 65379, 96007, 114589, 130758, 186961, 192014, 229178, 288021, 343767, 373922, 560883, 576042, 687534, 1121766, 3552259, 7104518, 10656777, 21313554]

約数ペア:

[(1, 21313554), (2, 10656777), (3, 7104518), (6, 3552259), (19, 1121766), (31, 687534), (37, 576042), (38, 560883), (57, 373922), (62, 343767), (74, 288021), (93, 229178), (111, 192014), (114, 186961), (163, 130758), (186, 114589), (222, 96007), (326, 65379), (489, 43586), (589, 36186), (703, 30318), (978, 21793), (1147, 18582), (1178, 18093), (1406, 15159), (1767, 12062), (2109, 10106), (2294, 9291), (3097, 6882), (3441, 6194), (3534, 6031), (4218, 5053)]