21568716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2711}}^1$

素因数の和:2751

約数の個数: 72

約数和(自身を含む): 62191584

約数和(自身を除く): 40622868

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 2711, 3978, 5422, 7956, 8133, 10844, 16266, 24399, 32532, 35243, 46087, 48798, 70486, 92174, 97596, 105729, 138261, 140972, 184348, 211458, 276522, 317187, 414783, 422916, 553044, 599131, 634374, 829566, 1198262, 1268748, 1659132, 1797393, 2396524, 3594786, 5392179, 7189572, 10784358, 21568716]

約数ペア:

[(1, 21568716), (2, 10784358), (3, 7189572), (4, 5392179), (6, 3594786), (9, 2396524), (12, 1797393), (13, 1659132), (17, 1268748), (18, 1198262), (26, 829566), (34, 634374), (36, 599131), (39, 553044), (51, 422916), (52, 414783), (68, 317187), (78, 276522), (102, 211458), (117, 184348), (153, 140972), (156, 138261), (204, 105729), (221, 97596), (234, 92174), (306, 70486), (442, 48798), (468, 46087), (612, 35243), (663, 32532), (884, 24399), (1326, 16266), (1989, 10844), (2652, 8133), (2711, 7956), (3978, 5422)]