18961065

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15633495

約数列:

[1, 3, 5, 9, 15, 41, 43, 45, 123, 129, 205, 215, 239, 369, 387, 615, 645, 717, 1195, 1763, 1845, 1935, 2151, 3585, 5289, 8815, 9799, 10277, 10755, 15867, 26445, 29397, 30831, 48995, 51385, 79335, 88191, 92493, 146985, 154155, 421357, 440955, 462465, 1264071, 2106785, 3792213, 6320355, 18961065]

約数ペア:

[(1, 18961065), (3, 6320355), (5, 3792213), (9, 2106785), (15, 1264071), (41, 462465), (43, 440955), (45, 421357), (123, 154155), (129, 146985), (205, 92493), (215, 88191), (239, 79335), (369, 51385), (387, 48995), (615, 30831), (645, 29397), (717, 26445), (1195, 15867), (1763, 10755), (1845, 10277), (1935, 9799), (2151, 8815), (3585, 5289)]