19657430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1699}}^1$

素因数の和:1808

約数の個数: 32

約数和(自身を含む): 38556000

約数和(自身を除く): 18898570

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 1699, 2314, 3398, 5785, 8495, 11570, 16990, 22087, 44174, 110435, 151211, 220870, 302422, 756055, 1512110, 1965743, 3931486, 9828715, 19657430]

約数ペア:

[(1, 19657430), (2, 9828715), (5, 3931486), (10, 1965743), (13, 1512110), (26, 756055), (65, 302422), (89, 220870), (130, 151211), (178, 110435), (445, 44174), (890, 22087), (1157, 16990), (1699, 11570), (2314, 8495), (3398, 5785)]