220101987

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{829}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 344217600

約数和(自身を除く): 124115613

約数列:

[1, 3, 7, 21, 47, 141, 269, 329, 807, 829, 987, 1883, 2487, 5649, 5803, 12643, 17409, 37929, 38963, 88501, 116889, 223001, 265503, 272741, 669003, 818223, 1561007, 4683021, 10481047, 31443141, 73367329, 220101987]

約数ペア:

[(1, 220101987), (3, 73367329), (7, 31443141), (21, 10481047), (47, 4683021), (141, 1561007), (269, 818223), (329, 669003), (807, 272741), (829, 265503), (987, 223001), (1883, 116889), (2487, 88501), (5649, 38963), (5803, 37929), (12643, 17409)]