21686490

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1236

約数の個数: 96

約数和(自身を含む): 66718080

約数和(自身を除く): 45031590

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 29, 30, 35, 42, 45, 58, 63, 70, 87, 90, 105, 126, 145, 174, 203, 210, 261, 290, 315, 406, 435, 522, 609, 630, 870, 1015, 1187, 1218, 1305, 1827, 2030, 2374, 2610, 3045, 3561, 3654, 5935, 6090, 7122, 8309, 9135, 10683, 11870, 16618, 17805, 18270, 21366, 24927, 34423, 35610, 41545, 49854, 53415, 68846, 74781, 83090, 103269, 106830, 124635, 149562, 172115, 206538, 240961, 249270, 309807, 344230, 373905, 481922, 516345, 619614, 722883, 747810, 1032690, 1204805, 1445766, 1549035, 2168649, 2409610, 3098070, 3614415, 4337298, 7228830, 10843245, 21686490]

約数ペア:

[(1, 21686490), (2, 10843245), (3, 7228830), (5, 4337298), (6, 3614415), (7, 3098070), (9, 2409610), (10, 2168649), (14, 1549035), (15, 1445766), (18, 1204805), (21, 1032690), (29, 747810), (30, 722883), (35, 619614), (42, 516345), (45, 481922), (58, 373905), (63, 344230), (70, 309807), (87, 249270), (90, 240961), (105, 206538), (126, 172115), (145, 149562), (174, 124635), (203, 106830), (210, 103269), (261, 83090), (290, 74781), (315, 68846), (406, 53415), (435, 49854), (522, 41545), (609, 35610), (630, 34423), (870, 24927), (1015, 21366), (1187, 18270), (1218, 17805), (1305, 16618), (1827, 11870), (2030, 10683), (2374, 9135), (2610, 8309), (3045, 7122), (3561, 6090), (3654, 5935)]