21999816

素因数分解:

$2^3\times 3^3\times {\mathrm{179}}^1\times {\mathrm{569}}^1$

素因数の和:763

約数の個数: 64

約数和(自身を含む): 61560000

約数和(自身を除く): 39560184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 179, 216, 358, 537, 569, 716, 1074, 1138, 1432, 1611, 1707, 2148, 2276, 3222, 3414, 4296, 4552, 4833, 5121, 6444, 6828, 9666, 10242, 12888, 13656, 15363, 19332, 20484, 30726, 38664, 40968, 61452, 101851, 122904, 203702, 305553, 407404, 611106, 814808, 916659, 1222212, 1833318, 2444424, 2749977, 3666636, 5499954, 7333272, 10999908, 21999816]

約数ペア:

[(1, 21999816), (2, 10999908), (3, 7333272), (4, 5499954), (6, 3666636), (8, 2749977), (9, 2444424), (12, 1833318), (18, 1222212), (24, 916659), (27, 814808), (36, 611106), (54, 407404), (72, 305553), (108, 203702), (179, 122904), (216, 101851), (358, 61452), (537, 40968), (569, 38664), (716, 30726), (1074, 20484), (1138, 19332), (1432, 15363), (1611, 13656), (1707, 12888), (2148, 10242), (2276, 9666), (3222, 6828), (3414, 6444), (4296, 5121), (4552, 4833)]