21996012870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1105883}}^1$

素因数の和:1105926

約数の個数: 96

約数和(自身を含む): 65211767712

約数和(自身を除く): 43215754842

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1105, 1170, 1326, 1530, 1989, 2210, 3315, 3978, 6630, 9945, 19890, 1105883, 2211766, 3317649, 5529415, 6635298, 9952947, 11058830, 14376479, 16588245, 18800011, 19905894, 28752958, 33176490, 37600022, 43129437, 49764735, 56400033, 71882395, 86258874, 94000055, 99529470, 112800066, 129388311, 143764790, 169200099, 188000110, 215647185, 244400143, 258776622, 282000165, 338400198, 431294370, 488800286, 564000330, 646941555, 733200429, 846000495, 1222000715, 1293883110, 1466400858, 1692000990, 2199601287, 2444001430, 3666002145, 4399202574, 7332004290, 10998006435, 21996012870]

約数ペア:

[(1, 21996012870), (2, 10998006435), (3, 7332004290), (5, 4399202574), (6, 3666002145), (9, 2444001430), (10, 2199601287), (13, 1692000990), (15, 1466400858), (17, 1293883110), (18, 1222000715), (26, 846000495), (30, 733200429), (34, 646941555), (39, 564000330), (45, 488800286), (51, 431294370), (65, 338400198), (78, 282000165), (85, 258776622), (90, 244400143), (102, 215647185), (117, 188000110), (130, 169200099), (153, 143764790), (170, 129388311), (195, 112800066), (221, 99529470), (234, 94000055), (255, 86258874), (306, 71882395), (390, 56400033), (442, 49764735), (510, 43129437), (585, 37600022), (663, 33176490), (765, 28752958), (1105, 19905894), (1170, 18800011), (1326, 16588245), (1530, 14376479), (1989, 11058830), (2210, 9952947), (3315, 6635298), (3978, 5529415), (6630, 3317649), (9945, 2211766), (19890, 1105883)]