20996190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13723}}^1$

素因数の和:13753

約数の個数: 48

約数和(自身を含む): 57805488

約数和(自身を除く): 36809298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 13723, 27446, 41169, 68615, 82338, 123507, 137230, 205845, 233291, 247014, 411690, 466582, 617535, 699873, 1166455, 1235070, 1399746, 2099619, 2332910, 3499365, 4199238, 6998730, 10498095, 20996190]

約数ペア:

[(1, 20996190), (2, 10498095), (3, 6998730), (5, 4199238), (6, 3499365), (9, 2332910), (10, 2099619), (15, 1399746), (17, 1235070), (18, 1166455), (30, 699873), (34, 617535), (45, 466582), (51, 411690), (85, 247014), (90, 233291), (102, 205845), (153, 137230), (170, 123507), (255, 82338), (306, 68615), (510, 41169), (765, 27446), (1530, 13723)]