21326370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 34315230

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 149, 195, 298, 367, 390, 447, 734, 745, 894, 1101, 1490, 1835, 1937, 2202, 2235, 3670, 3874, 4470, 4771, 5505, 5811, 9542, 9685, 11010, 11622, 14313, 19370, 23855, 28626, 29055, 47710, 54683, 58110, 71565, 109366, 143130, 164049, 273415, 328098, 546830, 710879, 820245, 1421758, 1640490, 2132637, 3554395, 4265274, 7108790, 10663185, 21326370]

約数ペア:

[(1, 21326370), (2, 10663185), (3, 7108790), (5, 4265274), (6, 3554395), (10, 2132637), (13, 1640490), (15, 1421758), (26, 820245), (30, 710879), (39, 546830), (65, 328098), (78, 273415), (130, 164049), (149, 143130), (195, 109366), (298, 71565), (367, 58110), (390, 54683), (447, 47710), (734, 29055), (745, 28626), (894, 23855), (1101, 19370), (1490, 14313), (1835, 11622), (1937, 11010), (2202, 9685), (2235, 9542), (3670, 5811), (3874, 5505), (4470, 4771)]