21937485

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 38128896

約数和(自身を除く): 16191411

約数列:

[1, 3, 5, 15, 29, 37, 47, 87, 111, 141, 145, 185, 235, 435, 555, 705, 841, 1073, 1363, 1739, 2523, 3219, 4089, 4205, 5217, 5365, 6815, 8695, 12615, 16095, 20445, 26085, 31117, 39527, 50431, 93351, 118581, 151293, 155585, 197635, 252155, 466755, 592905, 756465, 1462499, 4387497, 7312495, 21937485]

約数ペア:

[(1, 21937485), (3, 7312495), (5, 4387497), (15, 1462499), (29, 756465), (37, 592905), (47, 466755), (87, 252155), (111, 197635), (141, 155585), (145, 151293), (185, 118581), (235, 93351), (435, 50431), (555, 39527), (705, 31117), (841, 26085), (1073, 20445), (1363, 16095), (1739, 12615), (2523, 8695), (3219, 6815), (4089, 5365), (4205, 5217)]