21133605

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2557}}^1$

素因数の和:2613

約数の個数: 32

約数和(自身を含む): 36835200

約数和(自身を除く): 15701595

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2557, 2755, 7671, 8265, 12785, 38355, 48583, 74153, 145749, 222459, 242915, 370765, 728745, 1112295, 1408907, 4226721, 7044535, 21133605]

約数ペア:

[(1, 21133605), (3, 7044535), (5, 4226721), (15, 1408907), (19, 1112295), (29, 728745), (57, 370765), (87, 242915), (95, 222459), (145, 145749), (285, 74153), (435, 48583), (551, 38355), (1653, 12785), (2557, 8265), (2755, 7671)]