21000409014

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{75017}}^1$

素因数の和:75169

約数の個数: 64

約数和(自身を含む): 46933661376

約数和(自身を除く): 25933252362

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 97, 111, 194, 222, 291, 481, 582, 962, 1261, 1443, 2522, 2886, 3589, 3783, 7178, 7566, 10767, 21534, 46657, 75017, 93314, 139971, 150034, 225051, 279942, 450102, 975221, 1950442, 2775629, 2925663, 5551258, 5851326, 7276649, 8326887, 14553298, 16653774, 21829947, 36083177, 43659894, 72166354, 94596437, 108249531, 189192874, 216499062, 269236013, 283789311, 538472026, 567578622, 807708039, 1615416078, 3500068169, 7000136338, 10500204507, 21000409014]

約数ペア:

[(1, 21000409014), (2, 10500204507), (3, 7000136338), (6, 3500068169), (13, 1615416078), (26, 807708039), (37, 567578622), (39, 538472026), (74, 283789311), (78, 269236013), (97, 216499062), (111, 189192874), (194, 108249531), (222, 94596437), (291, 72166354), (481, 43659894), (582, 36083177), (962, 21829947), (1261, 16653774), (1443, 14553298), (2522, 8326887), (2886, 7276649), (3589, 5851326), (3783, 5551258), (7178, 2925663), (7566, 2775629), (10767, 1950442), (21534, 975221), (46657, 450102), (75017, 279942), (93314, 225051), (139971, 150034)]