20915466

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1283}}^1$

素因数の和:1331

約数の個数: 64

約数和(自身を含む): 51770880

約数和(自身を除く): 30855414

約数列:

[1, 2, 3, 6, 11, 13, 19, 22, 26, 33, 38, 39, 57, 66, 78, 114, 143, 209, 247, 286, 418, 429, 494, 627, 741, 858, 1254, 1283, 1482, 2566, 2717, 3849, 5434, 7698, 8151, 14113, 16302, 16679, 24377, 28226, 33358, 42339, 48754, 50037, 73131, 84678, 100074, 146262, 183469, 268147, 316901, 366938, 536294, 550407, 633802, 804441, 950703, 1100814, 1608882, 1901406, 3485911, 6971822, 10457733, 20915466]

約数ペア:

[(1, 20915466), (2, 10457733), (3, 6971822), (6, 3485911), (11, 1901406), (13, 1608882), (19, 1100814), (22, 950703), (26, 804441), (33, 633802), (38, 550407), (39, 536294), (57, 366938), (66, 316901), (78, 268147), (114, 183469), (143, 146262), (209, 100074), (247, 84678), (286, 73131), (418, 50037), (429, 48754), (494, 42339), (627, 33358), (741, 28226), (858, 24377), (1254, 16679), (1283, 16302), (1482, 14113), (2566, 8151), (2717, 7698), (3849, 5434)]