31231478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 51391200

約数和(自身を除く): 20159722

約数列:

[1, 2, 19, 37, 38, 74, 97, 194, 229, 458, 703, 1406, 1843, 3589, 3686, 4351, 7178, 8473, 8702, 16946, 22213, 44426, 68191, 136382, 160987, 321974, 422047, 821881, 844094, 1643762, 15615739, 31231478]

約数ペア:

[(1, 31231478), (2, 15615739), (19, 1643762), (37, 844094), (38, 821881), (74, 422047), (97, 321974), (194, 160987), (229, 136382), (458, 68191), (703, 44426), (1406, 22213), (1843, 16946), (3589, 8702), (3686, 8473), (4351, 7178)]