21997196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{503}}^1$

素因数の和:578

約数の個数: 36

約数和(自身を含む): 43020432

約数和(自身を除く): 21023236

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 503, 754, 841, 1006, 1508, 1682, 2012, 3364, 6539, 10933, 13078, 14587, 21866, 26156, 29174, 43732, 58348, 189631, 379262, 423023, 758524, 846046, 1692092, 5499299, 10998598, 21997196]

約数ペア:

[(1, 21997196), (2, 10998598), (4, 5499299), (13, 1692092), (26, 846046), (29, 758524), (52, 423023), (58, 379262), (116, 189631), (377, 58348), (503, 43732), (754, 29174), (841, 26156), (1006, 21866), (1508, 14587), (1682, 13078), (2012, 10933), (3364, 6539)]