21369868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 21530612

約数列:

[1, 2, 4, 13, 26, 29, 37, 52, 58, 74, 116, 148, 377, 383, 481, 754, 766, 962, 1073, 1508, 1532, 1924, 2146, 4292, 4979, 9958, 11107, 13949, 14171, 19916, 22214, 27898, 28342, 44428, 55796, 56684, 144391, 184223, 288782, 368446, 410959, 577564, 736892, 821918, 1643836, 5342467, 10684934, 21369868]

約数ペア:

[(1, 21369868), (2, 10684934), (4, 5342467), (13, 1643836), (26, 821918), (29, 736892), (37, 577564), (52, 410959), (58, 368446), (74, 288782), (116, 184223), (148, 144391), (377, 56684), (383, 55796), (481, 44428), (754, 28342), (766, 27898), (962, 22214), (1073, 19916), (1508, 14171), (1532, 13949), (1924, 11107), (2146, 9958), (4292, 4979)]