19856967

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 29964480

約数和(自身を除く): 10107513

約数列:

[1, 3, 13, 29, 39, 87, 97, 181, 291, 377, 543, 1131, 1261, 2353, 2813, 3783, 5249, 7059, 8439, 15747, 17557, 36569, 52671, 68237, 109707, 204711, 228241, 509153, 684723, 1527459, 6618989, 19856967]

約数ペア:

[(1, 19856967), (3, 6618989), (13, 1527459), (29, 684723), (39, 509153), (87, 228241), (97, 204711), (181, 109707), (291, 68237), (377, 52671), (543, 36569), (1131, 17557), (1261, 15747), (2353, 8439), (2813, 7059), (3783, 5249)]