20907828

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:498

約数の個数: 96

約数和(自身を含む): 59673600

約数和(自身を除く): 38765772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 27, 36, 38, 46, 54, 57, 69, 76, 92, 108, 114, 138, 171, 207, 228, 276, 342, 414, 437, 443, 513, 621, 684, 828, 874, 886, 1026, 1242, 1311, 1329, 1748, 1772, 2052, 2484, 2622, 2658, 3933, 3987, 5244, 5316, 7866, 7974, 8417, 10189, 11799, 11961, 15732, 15948, 16834, 20378, 23598, 23922, 25251, 30567, 33668, 40756, 47196, 47844, 50502, 61134, 75753, 91701, 101004, 122268, 151506, 183402, 193591, 227259, 275103, 303012, 366804, 387182, 454518, 550206, 580773, 774364, 909036, 1100412, 1161546, 1742319, 2323092, 3484638, 5226957, 6969276, 10453914, 20907828]

約数ペア:

[(1, 20907828), (2, 10453914), (3, 6969276), (4, 5226957), (6, 3484638), (9, 2323092), (12, 1742319), (18, 1161546), (19, 1100412), (23, 909036), (27, 774364), (36, 580773), (38, 550206), (46, 454518), (54, 387182), (57, 366804), (69, 303012), (76, 275103), (92, 227259), (108, 193591), (114, 183402), (138, 151506), (171, 122268), (207, 101004), (228, 91701), (276, 75753), (342, 61134), (414, 50502), (437, 47844), (443, 47196), (513, 40756), (621, 33668), (684, 30567), (828, 25251), (874, 23922), (886, 23598), (1026, 20378), (1242, 16834), (1311, 15948), (1329, 15732), (1748, 11961), (1772, 11799), (2052, 10189), (2484, 8417), (2622, 7974), (2658, 7866), (3933, 5316), (3987, 5244)]