19727435

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{227}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 9690037

約数列:

[1, 5, 7, 13, 35, 65, 91, 191, 227, 455, 955, 1135, 1337, 1589, 2483, 2951, 6685, 7945, 12415, 14755, 17381, 20657, 43357, 86905, 103285, 216785, 303499, 563641, 1517495, 2818205, 3945487, 19727435]

約数ペア:

[(1, 19727435), (5, 3945487), (7, 2818205), (13, 1517495), (35, 563641), (65, 303499), (91, 216785), (191, 103285), (227, 86905), (455, 43357), (955, 20657), (1135, 17381), (1337, 14755), (1589, 12415), (2483, 7945), (2951, 6685)]