21227940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2069}}^1$

素因数の和:2106

約数の個数: 96

約数和(自身を含む): 69552000

約数和(自身を除く): 48324060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 2052, 2069, 2565, 3420, 4138, 5130, 6207, 8276, 10260, 10345, 12414, 18621, 20690, 24828, 31035, 37242, 39311, 41380, 55863, 62070, 74484, 78622, 93105, 111726, 117933, 124140, 157244, 186210, 196555, 223452, 235866, 279315, 353799, 372420, 393110, 471732, 558630, 589665, 707598, 786220, 1061397, 1117260, 1179330, 1415196, 1768995, 2122794, 2358660, 3537990, 4245588, 5306985, 7075980, 10613970, 21227940]

約数ペア:

[(1, 21227940), (2, 10613970), (3, 7075980), (4, 5306985), (5, 4245588), (6, 3537990), (9, 2358660), (10, 2122794), (12, 1768995), (15, 1415196), (18, 1179330), (19, 1117260), (20, 1061397), (27, 786220), (30, 707598), (36, 589665), (38, 558630), (45, 471732), (54, 393110), (57, 372420), (60, 353799), (76, 279315), (90, 235866), (95, 223452), (108, 196555), (114, 186210), (135, 157244), (171, 124140), (180, 117933), (190, 111726), (228, 93105), (270, 78622), (285, 74484), (342, 62070), (380, 55863), (513, 41380), (540, 39311), (570, 37242), (684, 31035), (855, 24828), (1026, 20690), (1140, 18621), (1710, 12414), (2052, 10345), (2069, 10260), (2565, 8276), (3420, 6207), (4138, 5130)]