21772660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1709}}^1$

素因数の和:1745

約数の個数: 72

約数和(自身を含む): 57312360

約数和(自身を除く): 35539700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1709, 1820, 2548, 3185, 3418, 6370, 6836, 8545, 11963, 12740, 17090, 22217, 23926, 34180, 44434, 47852, 59815, 83741, 88868, 111085, 119630, 155519, 167482, 222170, 239260, 311038, 334964, 418705, 444340, 622076, 777595, 837410, 1088633, 1555190, 1674820, 2177266, 3110380, 4354532, 5443165, 10886330, 21772660]

約数ペア:

[(1, 21772660), (2, 10886330), (4, 5443165), (5, 4354532), (7, 3110380), (10, 2177266), (13, 1674820), (14, 1555190), (20, 1088633), (26, 837410), (28, 777595), (35, 622076), (49, 444340), (52, 418705), (65, 334964), (70, 311038), (91, 239260), (98, 222170), (130, 167482), (140, 155519), (182, 119630), (196, 111085), (245, 88868), (260, 83741), (364, 59815), (455, 47852), (490, 44434), (637, 34180), (910, 23926), (980, 22217), (1274, 17090), (1709, 12740), (1820, 11963), (2548, 8545), (3185, 6836), (3418, 6370)]