21457842

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{733}}^1$

素因数の和:803

約数の個数: 64

約数和(自身を含む): 53270784

約数和(自身を除く): 31812942

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 41, 42, 51, 82, 102, 119, 123, 238, 246, 287, 357, 574, 697, 714, 733, 861, 1394, 1466, 1722, 2091, 2199, 4182, 4398, 4879, 5131, 9758, 10262, 12461, 14637, 15393, 24922, 29274, 30053, 30786, 37383, 60106, 74766, 87227, 90159, 174454, 180318, 210371, 261681, 420742, 510901, 523362, 631113, 1021802, 1262226, 1532703, 3065406, 3576307, 7152614, 10728921, 21457842]

約数ペア:

[(1, 21457842), (2, 10728921), (3, 7152614), (6, 3576307), (7, 3065406), (14, 1532703), (17, 1262226), (21, 1021802), (34, 631113), (41, 523362), (42, 510901), (51, 420742), (82, 261681), (102, 210371), (119, 180318), (123, 174454), (238, 90159), (246, 87227), (287, 74766), (357, 60106), (574, 37383), (697, 30786), (714, 30053), (733, 29274), (861, 24922), (1394, 15393), (1466, 14637), (1722, 12461), (2091, 10262), (2199, 9758), (4182, 5131), (4398, 4879)]