18899325

素因数分解:

$3^6\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:106

約数の個数: 84

約数和(自身を含む): 37813428

約数和(自身を除く): 18914103

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 61, 75, 81, 85, 135, 153, 183, 225, 243, 255, 305, 405, 425, 459, 549, 675, 729, 765, 915, 1037, 1215, 1275, 1377, 1525, 1647, 2025, 2295, 2745, 3111, 3645, 3825, 4131, 4575, 4941, 5185, 6075, 6885, 8235, 9333, 11475, 12393, 13725, 14823, 15555, 18225, 20655, 24705, 25925, 27999, 34425, 41175, 44469, 46665, 61965, 74115, 77775, 83997, 103275, 123525, 139995, 222345, 233325, 251991, 309825, 370575, 419985, 699975, 755973, 1111725, 1259955, 2099925, 3779865, 6299775, 18899325]

約数ペア:

[(1, 18899325), (3, 6299775), (5, 3779865), (9, 2099925), (15, 1259955), (17, 1111725), (25, 755973), (27, 699975), (45, 419985), (51, 370575), (61, 309825), (75, 251991), (81, 233325), (85, 222345), (135, 139995), (153, 123525), (183, 103275), (225, 83997), (243, 77775), (255, 74115), (305, 61965), (405, 46665), (425, 44469), (459, 41175), (549, 34425), (675, 27999), (729, 25925), (765, 24705), (915, 20655), (1037, 18225), (1215, 15555), (1275, 14823), (1377, 13725), (1525, 12393), (1647, 11475), (2025, 9333), (2295, 8235), (2745, 6885), (3111, 6075), (3645, 5185), (3825, 4941), (4131, 4575)]