21567960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 70696080

約数和(自身を除く): 49128120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 181, 331, 360, 362, 543, 662, 724, 905, 993, 1086, 1324, 1448, 1629, 1655, 1810, 1986, 2172, 2648, 2715, 2979, 3258, 3310, 3620, 3972, 4344, 4965, 5430, 5958, 6516, 6620, 7240, 7944, 8145, 9930, 10860, 11916, 13032, 13240, 14895, 16290, 19860, 21720, 23832, 29790, 32580, 39720, 59580, 59911, 65160, 119160, 119822, 179733, 239644, 299555, 359466, 479288, 539199, 599110, 718932, 898665, 1078398, 1198220, 1437864, 1797330, 2156796, 2396440, 2695995, 3594660, 4313592, 5391990, 7189320, 10783980, 21567960]

約数ペア:

[(1, 21567960), (2, 10783980), (3, 7189320), (4, 5391990), (5, 4313592), (6, 3594660), (8, 2695995), (9, 2396440), (10, 2156796), (12, 1797330), (15, 1437864), (18, 1198220), (20, 1078398), (24, 898665), (30, 718932), (36, 599110), (40, 539199), (45, 479288), (60, 359466), (72, 299555), (90, 239644), (120, 179733), (180, 119822), (181, 119160), (331, 65160), (360, 59911), (362, 59580), (543, 39720), (662, 32580), (724, 29790), (905, 23832), (993, 21720), (1086, 19860), (1324, 16290), (1448, 14895), (1629, 13240), (1655, 13032), (1810, 11916), (1986, 10860), (2172, 9930), (2648, 8145), (2715, 7944), (2979, 7240), (3258, 6620), (3310, 6516), (3620, 5958), (3972, 5430), (4344, 4965)]