213806908

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{1471}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 445132800

約数和(自身を除く): 231325892

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 179, 203, 358, 406, 716, 812, 1253, 1471, 2506, 2942, 5012, 5191, 5884, 10297, 10382, 20594, 20764, 36337, 41188, 42659, 72674, 85318, 145348, 170636, 263309, 298613, 526618, 597226, 1053236, 1194452, 1843163, 3686326, 7372652, 7635961, 15271922, 30543844, 53451727, 106903454, 213806908]

約数ペア:

[(1, 213806908), (2, 106903454), (4, 53451727), (7, 30543844), (14, 15271922), (28, 7635961), (29, 7372652), (58, 3686326), (116, 1843163), (179, 1194452), (203, 1053236), (358, 597226), (406, 526618), (716, 298613), (812, 263309), (1253, 170636), (1471, 145348), (2506, 85318), (2942, 72674), (5012, 42659), (5191, 41188), (5884, 36337), (10297, 20764), (10382, 20594)]