21947340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21517}}^1$

素因数の和:21546

約数の個数: 48

約数和(自身を含む): 65070432

約数和(自身を除く): 43123092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21517, 43034, 64551, 86068, 107585, 129102, 215170, 258204, 322755, 365789, 430340, 645510, 731578, 1097367, 1291020, 1463156, 1828945, 2194734, 3657890, 4389468, 5486835, 7315780, 10973670, 21947340]

約数ペア:

[(1, 21947340), (2, 10973670), (3, 7315780), (4, 5486835), (5, 4389468), (6, 3657890), (10, 2194734), (12, 1828945), (15, 1463156), (17, 1291020), (20, 1097367), (30, 731578), (34, 645510), (51, 430340), (60, 365789), (68, 322755), (85, 258204), (102, 215170), (170, 129102), (204, 107585), (255, 86068), (340, 64551), (510, 43034), (1020, 21517)]