21708180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9277}}^1$

素因数の和:9305

約数の個数: 72

約数和(自身を含む): 70921032

約数和(自身を除く): 49212852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9277, 18554, 27831, 37108, 46385, 55662, 83493, 92770, 111324, 120601, 139155, 166986, 185540, 241202, 278310, 333972, 361803, 417465, 482404, 556620, 603005, 723606, 834930, 1085409, 1206010, 1447212, 1669860, 1809015, 2170818, 2412020, 3618030, 4341636, 5427045, 7236060, 10854090, 21708180]

約数ペア:

[(1, 21708180), (2, 10854090), (3, 7236060), (4, 5427045), (5, 4341636), (6, 3618030), (9, 2412020), (10, 2170818), (12, 1809015), (13, 1669860), (15, 1447212), (18, 1206010), (20, 1085409), (26, 834930), (30, 723606), (36, 603005), (39, 556620), (45, 482404), (52, 417465), (60, 361803), (65, 333972), (78, 278310), (90, 241202), (117, 185540), (130, 166986), (156, 139155), (180, 120601), (195, 111324), (234, 92770), (260, 83493), (390, 55662), (468, 46385), (585, 37108), (780, 27831), (1170, 18554), (2340, 9277)]