21396438

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1427}}^1$

素因数の和:1466

約数の個数: 72

約数和(自身を含む): 57139992

約数和(自身を除く): 35743554

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 49, 51, 63, 98, 102, 119, 126, 147, 153, 238, 294, 306, 357, 441, 714, 833, 882, 1071, 1427, 1666, 2142, 2499, 2854, 4281, 4998, 7497, 8562, 9989, 12843, 14994, 19978, 24259, 25686, 29967, 48518, 59934, 69923, 72777, 89901, 139846, 145554, 169813, 179802, 209769, 218331, 339626, 419538, 436662, 509439, 629307, 1018878, 1188691, 1258614, 1528317, 2377382, 3056634, 3566073, 7132146, 10698219, 21396438]

約数ペア:

[(1, 21396438), (2, 10698219), (3, 7132146), (6, 3566073), (7, 3056634), (9, 2377382), (14, 1528317), (17, 1258614), (18, 1188691), (21, 1018878), (34, 629307), (42, 509439), (49, 436662), (51, 419538), (63, 339626), (98, 218331), (102, 209769), (119, 179802), (126, 169813), (147, 145554), (153, 139846), (238, 89901), (294, 72777), (306, 69923), (357, 59934), (441, 48518), (714, 29967), (833, 25686), (882, 24259), (1071, 19978), (1427, 14994), (1666, 12843), (2142, 9989), (2499, 8562), (2854, 7497), (4281, 4998)]