21225330

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4813}}^1$

素因数の和:4840

約数の個数: 72

約数和(自身を含む): 64209132

約数和(自身を除く): 42983802

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4813, 9626, 14439, 24065, 28878, 33691, 43317, 48130, 67382, 72195, 86634, 101073, 144390, 168455, 202146, 216585, 235837, 303219, 336910, 433170, 471674, 505365, 606438, 707511, 1010730, 1179185, 1415022, 1516095, 2122533, 2358370, 3032190, 3537555, 4245066, 7075110, 10612665, 21225330]

約数ペア:

[(1, 21225330), (2, 10612665), (3, 7075110), (5, 4245066), (6, 3537555), (7, 3032190), (9, 2358370), (10, 2122533), (14, 1516095), (15, 1415022), (18, 1179185), (21, 1010730), (30, 707511), (35, 606438), (42, 505365), (45, 471674), (49, 433170), (63, 336910), (70, 303219), (90, 235837), (98, 216585), (105, 202146), (126, 168455), (147, 144390), (210, 101073), (245, 86634), (294, 72195), (315, 67382), (441, 48130), (490, 43317), (630, 33691), (735, 28878), (882, 24065), (1470, 14439), (2205, 9626), (4410, 4813)]