181374921

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1861}}^1$

素因数の和:1911

約数の個数: 72

約数和(自身を含む): 347694984

約数和(自身を除く): 166320063

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 49, 51, 63, 91, 117, 119, 147, 153, 221, 273, 357, 441, 637, 663, 819, 833, 1071, 1547, 1861, 1911, 1989, 2499, 4641, 5583, 5733, 7497, 10829, 13027, 13923, 16749, 24193, 31637, 32487, 39081, 72579, 91189, 94911, 97461, 117243, 169351, 217737, 221459, 273567, 284733, 411281, 508053, 664377, 820701, 1185457, 1233843, 1524159, 1550213, 1993131, 2878967, 3556371, 3701529, 4650639, 8636901, 10669113, 13951917, 20152769, 25910703, 60458307, 181374921]

約数ペア:

[(1, 181374921), (3, 60458307), (7, 25910703), (9, 20152769), (13, 13951917), (17, 10669113), (21, 8636901), (39, 4650639), (49, 3701529), (51, 3556371), (63, 2878967), (91, 1993131), (117, 1550213), (119, 1524159), (147, 1233843), (153, 1185457), (221, 820701), (273, 664377), (357, 508053), (441, 411281), (637, 284733), (663, 273567), (819, 221459), (833, 217737), (1071, 169351), (1547, 117243), (1861, 97461), (1911, 94911), (1989, 91189), (2499, 72579), (4641, 39081), (5583, 32487), (5733, 31637), (7497, 24193), (10829, 16749), (13027, 13923)]