21834460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 27154340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 149, 170, 298, 340, 431, 596, 745, 862, 1490, 1724, 2155, 2533, 2980, 4310, 5066, 7327, 8620, 10132, 12665, 14654, 25330, 29308, 36635, 50660, 64219, 73270, 128438, 146540, 256876, 321095, 642190, 1091723, 1284380, 2183446, 4366892, 5458615, 10917230, 21834460]

約数ペア:

[(1, 21834460), (2, 10917230), (4, 5458615), (5, 4366892), (10, 2183446), (17, 1284380), (20, 1091723), (34, 642190), (68, 321095), (85, 256876), (149, 146540), (170, 128438), (298, 73270), (340, 64219), (431, 50660), (596, 36635), (745, 29308), (862, 25330), (1490, 14654), (1724, 12665), (2155, 10132), (2533, 8620), (2980, 7327), (4310, 5066)]