21718260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1087}}^1$

素因数の和:1142

約数の個数: 96

約数和(自身を含む): 69457920

約数和(自身を除く): 47739660

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, 1087, 1110, 1332, 1665, 1998, 2174, 2220, 3261, 3330, 3996, 4348, 4995, 5435, 6522, 6660, 9783, 9990, 10870, 13044, 16305, 19566, 19980, 21740, 29349, 32610, 39132, 40219, 48915, 58698, 65220, 80438, 97830, 117396, 120657, 146745, 160876, 195660, 201095, 241314, 293490, 361971, 402190, 482628, 586980, 603285, 723942, 804380, 1085913, 1206570, 1447884, 1809855, 2171826, 2413140, 3619710, 4343652, 5429565, 7239420, 10859130, 21718260]

約数ペア:

[(1, 21718260), (2, 10859130), (3, 7239420), (4, 5429565), (5, 4343652), (6, 3619710), (9, 2413140), (10, 2171826), (12, 1809855), (15, 1447884), (18, 1206570), (20, 1085913), (27, 804380), (30, 723942), (36, 603285), (37, 586980), (45, 482628), (54, 402190), (60, 361971), (74, 293490), (90, 241314), (108, 201095), (111, 195660), (135, 160876), (148, 146745), (180, 120657), (185, 117396), (222, 97830), (270, 80438), (333, 65220), (370, 58698), (444, 48915), (540, 40219), (555, 39132), (666, 32610), (740, 29349), (999, 21740), (1087, 19980), (1110, 19566), (1332, 16305), (1665, 13044), (1998, 10870), (2174, 9990), (2220, 9783), (3261, 6660), (3330, 6522), (3996, 5435), (4348, 4995)]