21381569484

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{396043}}^1$

素因数の和:396470

約数の個数: 48

約数和(自身を含む): 54559021440

約数和(自身を除く): 33177451956

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 409, 818, 1227, 1636, 2454, 4499, 4908, 8998, 13497, 17996, 26994, 53988, 396043, 792086, 1188129, 1584172, 2376258, 4356473, 4752516, 8712946, 13069419, 17425892, 26138838, 52277676, 161981587, 323963174, 485944761, 647926348, 971889522, 1781797457, 1943779044, 3563594914, 5345392371, 7127189828, 10690784742, 21381569484]

約数ペア:

[(1, 21381569484), (2, 10690784742), (3, 7127189828), (4, 5345392371), (6, 3563594914), (11, 1943779044), (12, 1781797457), (22, 971889522), (33, 647926348), (44, 485944761), (66, 323963174), (132, 161981587), (409, 52277676), (818, 26138838), (1227, 17425892), (1636, 13069419), (2454, 8712946), (4499, 4752516), (4908, 4356473), (8998, 2376258), (13497, 1584172), (17996, 1188129), (26994, 792086), (53988, 396043)]