19717215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2377}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 36526080

約数和(自身を除く): 16808865

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2377, 2765, 7131, 8295, 11885, 16639, 35655, 49917, 83195, 187783, 249585, 563349, 938915, 1314481, 2816745, 3943443, 6572405, 19717215]

約数ペア:

[(1, 19717215), (3, 6572405), (5, 3943443), (7, 2816745), (15, 1314481), (21, 938915), (35, 563349), (79, 249585), (105, 187783), (237, 83195), (395, 49917), (553, 35655), (1185, 16639), (1659, 11885), (2377, 8295), (2765, 7131)]