18206388

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:517

約数の個数: 72

約数和(自身を含む): 49533120

約数和(自身を除く): 31326732

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 71, 102, 142, 153, 204, 213, 284, 306, 419, 426, 612, 639, 838, 852, 1207, 1257, 1278, 1676, 2414, 2514, 2556, 3621, 3771, 4828, 5028, 7123, 7242, 7542, 10863, 14246, 14484, 15084, 21369, 21726, 28492, 29749, 42738, 43452, 59498, 64107, 85476, 89247, 118996, 128214, 178494, 256428, 267741, 356988, 505733, 535482, 1011466, 1070964, 1517199, 2022932, 3034398, 4551597, 6068796, 9103194, 18206388]

約数ペア:

[(1, 18206388), (2, 9103194), (3, 6068796), (4, 4551597), (6, 3034398), (9, 2022932), (12, 1517199), (17, 1070964), (18, 1011466), (34, 535482), (36, 505733), (51, 356988), (68, 267741), (71, 256428), (102, 178494), (142, 128214), (153, 118996), (204, 89247), (213, 85476), (284, 64107), (306, 59498), (419, 43452), (426, 42738), (612, 29749), (639, 28492), (838, 21726), (852, 21369), (1207, 15084), (1257, 14484), (1278, 14246), (1676, 10863), (2414, 7542), (2514, 7242), (2556, 7123), (3621, 5028), (3771, 4828)]