221223905

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{4973}}^1$

素因数の和:5057

約数の個数: 32

約数和(自身を含む): 320882688

約数和(自身を除く): 99658783

約数列:

[1, 5, 7, 31, 35, 41, 155, 205, 217, 287, 1085, 1271, 1435, 4973, 6355, 8897, 24865, 34811, 44485, 154163, 174055, 203893, 770815, 1019465, 1079141, 1427251, 5395705, 6320683, 7136255, 31603415, 44244781, 221223905]

約数ペア:

[(1, 221223905), (5, 44244781), (7, 31603415), (31, 7136255), (35, 6320683), (41, 5395705), (155, 1427251), (205, 1079141), (217, 1019465), (287, 770815), (1085, 203893), (1271, 174055), (1435, 154163), (4973, 44485), (6355, 34811), (8897, 24865)]