31078593

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{139}}^1$

素因数の和:188

約数の個数: 72

約数和(自身を含む): 58413600

約数和(自身を除く): 27335007

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 139, 147, 169, 189, 273, 351, 417, 441, 507, 637, 819, 973, 1183, 1251, 1323, 1521, 1807, 1911, 2457, 2919, 3549, 3753, 4563, 5421, 5733, 6811, 8281, 8757, 10647, 12649, 16263, 17199, 20433, 23491, 24843, 26271, 31941, 37947, 48789, 61299, 70473, 74529, 88543, 113841, 164437, 183897, 211419, 223587, 265629, 341523, 493311, 634257, 796887, 1151059, 1479933, 2390661, 3453177, 4439799, 10359531, 31078593]

約数ペア:

[(1, 31078593), (3, 10359531), (7, 4439799), (9, 3453177), (13, 2390661), (21, 1479933), (27, 1151059), (39, 796887), (49, 634257), (63, 493311), (91, 341523), (117, 265629), (139, 223587), (147, 211419), (169, 183897), (189, 164437), (273, 113841), (351, 88543), (417, 74529), (441, 70473), (507, 61299), (637, 48789), (819, 37947), (973, 31941), (1183, 26271), (1251, 24843), (1323, 23491), (1521, 20433), (1807, 17199), (1911, 16263), (2457, 12649), (2919, 10647), (3549, 8757), (3753, 8281), (4563, 6811), (5421, 5733)]