221420316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{19991}}^1$

素因数の和:20082

約数の個数: 48

約数和(自身を含む): 564254208

約数和(自身を除く): 342833892

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 2769, 3692, 5538, 11076, 19991, 39982, 59973, 79964, 119946, 239892, 259883, 519766, 779649, 1039532, 1419361, 1559298, 2838722, 3118596, 4258083, 5677444, 8516166, 17032332, 18451693, 36903386, 55355079, 73806772, 110710158, 221420316]

約数ペア:

[(1, 221420316), (2, 110710158), (3, 73806772), (4, 55355079), (6, 36903386), (12, 18451693), (13, 17032332), (26, 8516166), (39, 5677444), (52, 4258083), (71, 3118596), (78, 2838722), (142, 1559298), (156, 1419361), (213, 1039532), (284, 779649), (426, 519766), (852, 259883), (923, 239892), (1846, 119946), (2769, 79964), (3692, 59973), (5538, 39982), (11076, 19991)]