21688560

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3347}}^1$

素因数の和:3372

約数の個数: 100

約数和(自身を含む): 75350088

約数和(自身を除く): 53661528

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 3347, 6480, 6694, 10041, 13388, 16735, 20082, 26776, 30123, 33470, 40164, 50205, 53552, 60246, 66940, 80328, 90369, 100410, 120492, 133880, 150615, 160656, 180738, 200820, 240984, 267760, 271107, 301230, 361476, 401640, 451845, 481968, 542214, 602460, 722952, 803280, 903690, 1084428, 1204920, 1355535, 1445904, 1807380, 2168856, 2409840, 2711070, 3614760, 4337712, 5422140, 7229520, 10844280, 21688560]

約数ペア:

[(1, 21688560), (2, 10844280), (3, 7229520), (4, 5422140), (5, 4337712), (6, 3614760), (8, 2711070), (9, 2409840), (10, 2168856), (12, 1807380), (15, 1445904), (16, 1355535), (18, 1204920), (20, 1084428), (24, 903690), (27, 803280), (30, 722952), (36, 602460), (40, 542214), (45, 481968), (48, 451845), (54, 401640), (60, 361476), (72, 301230), (80, 271107), (81, 267760), (90, 240984), (108, 200820), (120, 180738), (135, 160656), (144, 150615), (162, 133880), (180, 120492), (216, 100410), (240, 90369), (270, 80328), (324, 66940), (360, 60246), (405, 53552), (432, 50205), (540, 40164), (648, 33470), (720, 30123), (810, 26776), (1080, 20082), (1296, 16735), (1620, 13388), (2160, 10041), (3240, 6694), (3347, 6480)]