21591720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1675

約数の個数: 96

約数和(自身を含む): 72114120

約数和(自身を除く): 50522400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1621, 1665, 2220, 2664, 3242, 3330, 4440, 4863, 6484, 6660, 8105, 9726, 12968, 13320, 14589, 16210, 19452, 24315, 29178, 32420, 38904, 48630, 58356, 59977, 64840, 72945, 97260, 116712, 119954, 145890, 179931, 194520, 239908, 291780, 299885, 359862, 479816, 539793, 583560, 599770, 719724, 899655, 1079586, 1199540, 1439448, 1799310, 2159172, 2399080, 2698965, 3598620, 4318344, 5397930, 7197240, 10795860, 21591720]

約数ペア:

[(1, 21591720), (2, 10795860), (3, 7197240), (4, 5397930), (5, 4318344), (6, 3598620), (8, 2698965), (9, 2399080), (10, 2159172), (12, 1799310), (15, 1439448), (18, 1199540), (20, 1079586), (24, 899655), (30, 719724), (36, 599770), (37, 583560), (40, 539793), (45, 479816), (60, 359862), (72, 299885), (74, 291780), (90, 239908), (111, 194520), (120, 179931), (148, 145890), (180, 119954), (185, 116712), (222, 97260), (296, 72945), (333, 64840), (360, 59977), (370, 58356), (444, 48630), (555, 38904), (666, 32420), (740, 29178), (888, 24315), (1110, 19452), (1332, 16210), (1480, 14589), (1621, 13320), (1665, 12968), (2220, 9726), (2664, 8105), (3242, 6660), (3330, 6484), (4440, 4863)]