21006232

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 23809448

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 53, 74, 103, 104, 106, 148, 206, 212, 296, 412, 424, 481, 689, 824, 962, 1339, 1378, 1924, 1961, 2678, 2756, 3811, 3848, 3922, 5356, 5459, 5512, 7622, 7844, 10712, 10918, 15244, 15688, 21836, 25493, 30488, 43672, 49543, 50986, 70967, 99086, 101972, 141934, 198172, 201983, 203944, 283868, 396344, 403966, 567736, 807932, 1615864, 2625779, 5251558, 10503116, 21006232]

約数ペア:

[(1, 21006232), (2, 10503116), (4, 5251558), (8, 2625779), (13, 1615864), (26, 807932), (37, 567736), (52, 403966), (53, 396344), (74, 283868), (103, 203944), (104, 201983), (106, 198172), (148, 141934), (206, 101972), (212, 99086), (296, 70967), (412, 50986), (424, 49543), (481, 43672), (689, 30488), (824, 25493), (962, 21836), (1339, 15688), (1378, 15244), (1924, 10918), (1961, 10712), (2678, 7844), (2756, 7622), (3811, 5512), (3848, 5459), (3922, 5356)]