21128310

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{1597}}^1$

素因数の和:1627

約数の個数: 96

約数和(自身を含む): 65581920

約数和(自身を除く): 44453610

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 90, 98, 105, 126, 135, 147, 189, 210, 245, 270, 294, 315, 378, 441, 490, 630, 735, 882, 945, 1323, 1470, 1597, 1890, 2205, 2646, 3194, 4410, 4791, 6615, 7985, 9582, 11179, 13230, 14373, 15970, 22358, 23955, 28746, 33537, 43119, 47910, 55895, 67074, 71865, 78253, 86238, 100611, 111790, 143730, 156506, 167685, 201222, 215595, 234759, 301833, 335370, 391265, 431190, 469518, 503055, 603666, 704277, 782530, 1006110, 1173795, 1408554, 1509165, 2112831, 2347590, 3018330, 3521385, 4225662, 7042770, 10564155, 21128310]

約数ペア:

[(1, 21128310), (2, 10564155), (3, 7042770), (5, 4225662), (6, 3521385), (7, 3018330), (9, 2347590), (10, 2112831), (14, 1509165), (15, 1408554), (18, 1173795), (21, 1006110), (27, 782530), (30, 704277), (35, 603666), (42, 503055), (45, 469518), (49, 431190), (54, 391265), (63, 335370), (70, 301833), (90, 234759), (98, 215595), (105, 201222), (126, 167685), (135, 156506), (147, 143730), (189, 111790), (210, 100611), (245, 86238), (270, 78253), (294, 71865), (315, 67074), (378, 55895), (441, 47910), (490, 43119), (630, 33537), (735, 28746), (882, 23955), (945, 22358), (1323, 15970), (1470, 14373), (1597, 13230), (1890, 11179), (2205, 9582), (2646, 7985), (3194, 6615), (4410, 4791)]