21332212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 46085760

約数和(自身を除く): 24753548

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 79, 158, 187, 209, 316, 323, 361, 374, 418, 646, 722, 748, 836, 869, 1292, 1343, 1444, 1501, 1738, 2686, 3002, 3476, 3553, 3971, 5372, 6004, 6137, 7106, 7942, 12274, 14212, 14773, 15884, 16511, 24548, 25517, 28519, 29546, 33022, 51034, 57038, 59092, 66044, 67507, 102068, 114076, 135014, 270028, 280687, 313709, 484823, 561374, 627418, 969646, 1122748, 1254836, 1939292, 5333053, 10666106, 21332212]

約数ペア:

[(1, 21332212), (2, 10666106), (4, 5333053), (11, 1939292), (17, 1254836), (19, 1122748), (22, 969646), (34, 627418), (38, 561374), (44, 484823), (68, 313709), (76, 280687), (79, 270028), (158, 135014), (187, 114076), (209, 102068), (316, 67507), (323, 66044), (361, 59092), (374, 57038), (418, 51034), (646, 33022), (722, 29546), (748, 28519), (836, 25517), (869, 24548), (1292, 16511), (1343, 15884), (1444, 14773), (1501, 14212), (1738, 12274), (2686, 7942), (3002, 7106), (3476, 6137), (3553, 6004), (3971, 5372)]