215537985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21673}}^1$

素因数の和:21714

約数の個数: 48

約数和(自身を含む): 426024144

約数和(自身を除く): 210486159

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3315, 9945, 21673, 65019, 108365, 195057, 281749, 325095, 368441, 845247, 975285, 1105323, 1408745, 1842205, 2535741, 3315969, 4226235, 4789733, 5526615, 12678705, 14369199, 16579845, 23948665, 43107597, 71845995, 215537985]

約数ペア:

[(1, 215537985), (3, 71845995), (5, 43107597), (9, 23948665), (13, 16579845), (15, 14369199), (17, 12678705), (39, 5526615), (45, 4789733), (51, 4226235), (65, 3315969), (85, 2535741), (117, 1842205), (153, 1408745), (195, 1105323), (221, 975285), (255, 845247), (585, 368441), (663, 325095), (765, 281749), (1105, 195057), (1989, 108365), (3315, 65019), (9945, 21673)]