19935832

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 46379520

約数和(自身を除く): 26443688

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 56, 68, 86, 119, 136, 172, 238, 301, 344, 476, 487, 602, 731, 952, 974, 1204, 1462, 1948, 2408, 2924, 3409, 3896, 5117, 5848, 6818, 8279, 10234, 13636, 16558, 20468, 20941, 27272, 33116, 40936, 41882, 57953, 66232, 83764, 115906, 146587, 167528, 231812, 293174, 355997, 463624, 586348, 711994, 1172696, 1423988, 2491979, 2847976, 4983958, 9967916, 19935832]

約数ペア:

[(1, 19935832), (2, 9967916), (4, 4983958), (7, 2847976), (8, 2491979), (14, 1423988), (17, 1172696), (28, 711994), (34, 586348), (43, 463624), (56, 355997), (68, 293174), (86, 231812), (119, 167528), (136, 146587), (172, 115906), (238, 83764), (301, 66232), (344, 57953), (476, 41882), (487, 40936), (602, 33116), (731, 27272), (952, 20941), (974, 20468), (1204, 16558), (1462, 13636), (1948, 10234), (2408, 8279), (2924, 6818), (3409, 5848), (3896, 5117)]