212320305

素因数分解:

$3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9091}}^1$

素因数の和:9278

約数の個数: 32

約数和(自身を含む): 379681920

約数和(自身を除く): 167361615

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 173, 519, 865, 1557, 2595, 4671, 7785, 9091, 23355, 27273, 45455, 81819, 136365, 245457, 409095, 1227285, 1572743, 4718229, 7863715, 14154687, 23591145, 42464061, 70773435, 212320305]

約数ペア:

[(1, 212320305), (3, 70773435), (5, 42464061), (9, 23591145), (15, 14154687), (27, 7863715), (45, 4718229), (135, 1572743), (173, 1227285), (519, 409095), (865, 245457), (1557, 136365), (2595, 81819), (4671, 45455), (7785, 27273), (9091, 23355)]