21798180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1091}}^1$

素因数の和:1146

約数の個数: 96

約数和(自身を含む): 69713280

約数和(自身を除く): 47915100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 540, 555, 666, 740, 999, 1091, 1110, 1332, 1665, 1998, 2182, 2220, 3273, 3330, 3996, 4364, 4995, 5455, 6546, 6660, 9819, 9990, 10910, 13092, 16365, 19638, 19980, 21820, 29457, 32730, 39276, 40367, 49095, 58914, 65460, 80734, 98190, 117828, 121101, 147285, 161468, 196380, 201835, 242202, 294570, 363303, 403670, 484404, 589140, 605505, 726606, 807340, 1089909, 1211010, 1453212, 1816515, 2179818, 2422020, 3633030, 4359636, 5449545, 7266060, 10899090, 21798180]

約数ペア:

[(1, 21798180), (2, 10899090), (3, 7266060), (4, 5449545), (5, 4359636), (6, 3633030), (9, 2422020), (10, 2179818), (12, 1816515), (15, 1453212), (18, 1211010), (20, 1089909), (27, 807340), (30, 726606), (36, 605505), (37, 589140), (45, 484404), (54, 403670), (60, 363303), (74, 294570), (90, 242202), (108, 201835), (111, 196380), (135, 161468), (148, 147285), (180, 121101), (185, 117828), (222, 98190), (270, 80734), (333, 65460), (370, 58914), (444, 49095), (540, 40367), (555, 39276), (666, 32730), (740, 29457), (999, 21820), (1091, 19980), (1110, 19638), (1332, 16365), (1665, 13092), (1998, 10910), (2182, 9990), (2220, 9819), (3273, 6660), (3330, 6546), (3996, 5455), (4364, 4995)]