21159720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1109}}^1$

素因数の和:1179

約数の個数: 96

約数和(自身を含む): 70129800

約数和(自身を除く): 48970080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 53, 60, 72, 90, 106, 120, 159, 180, 212, 265, 318, 360, 424, 477, 530, 636, 795, 954, 1060, 1109, 1272, 1590, 1908, 2120, 2218, 2385, 3180, 3327, 3816, 4436, 4770, 5545, 6360, 6654, 8872, 9540, 9981, 11090, 13308, 16635, 19080, 19962, 22180, 26616, 33270, 39924, 44360, 49905, 58777, 66540, 79848, 99810, 117554, 133080, 176331, 199620, 235108, 293885, 352662, 399240, 470216, 528993, 587770, 705324, 881655, 1057986, 1175540, 1410648, 1763310, 2115972, 2351080, 2644965, 3526620, 4231944, 5289930, 7053240, 10579860, 21159720]

約数ペア:

[(1, 21159720), (2, 10579860), (3, 7053240), (4, 5289930), (5, 4231944), (6, 3526620), (8, 2644965), (9, 2351080), (10, 2115972), (12, 1763310), (15, 1410648), (18, 1175540), (20, 1057986), (24, 881655), (30, 705324), (36, 587770), (40, 528993), (45, 470216), (53, 399240), (60, 352662), (72, 293885), (90, 235108), (106, 199620), (120, 176331), (159, 133080), (180, 117554), (212, 99810), (265, 79848), (318, 66540), (360, 58777), (424, 49905), (477, 44360), (530, 39924), (636, 33270), (795, 26616), (954, 22180), (1060, 19962), (1109, 19080), (1272, 16635), (1590, 13308), (1908, 11090), (2120, 9981), (2218, 9540), (2385, 8872), (3180, 6654), (3327, 6360), (3816, 5545), (4436, 4770)]