389737257

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1063}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 686407680

約数和(自身を除く): 296670423

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 79, 91, 119, 221, 237, 273, 357, 553, 663, 1027, 1063, 1343, 1547, 1659, 3081, 3189, 4029, 4641, 7189, 7441, 9401, 13819, 17459, 18071, 21567, 22323, 28203, 41457, 52377, 54213, 83977, 96733, 122213, 126497, 234923, 251931, 290199, 366639, 379491, 587839, 704769, 1091701, 1427609, 1644461, 1763517, 3275103, 4282827, 4933383, 7641907, 9993263, 18558917, 22925721, 29979789, 55676751, 129912419, 389737257]

約数ペア:

[(1, 389737257), (3, 129912419), (7, 55676751), (13, 29979789), (17, 22925721), (21, 18558917), (39, 9993263), (51, 7641907), (79, 4933383), (91, 4282827), (119, 3275103), (221, 1763517), (237, 1644461), (273, 1427609), (357, 1091701), (553, 704769), (663, 587839), (1027, 379491), (1063, 366639), (1343, 290199), (1547, 251931), (1659, 234923), (3081, 126497), (3189, 122213), (4029, 96733), (4641, 83977), (7189, 54213), (7441, 52377), (9401, 41457), (13819, 28203), (17459, 22323), (18071, 21567)]