21891052348

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{251}}^1\times {\mathrm{367}}^1\times {\mathrm{491}}^1$

素因数の和:1135

約数の個数: 72

約数和(自身を含む): 42477910272

約数和(自身を除く): 20586857924

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 251, 367, 484, 491, 502, 734, 982, 1004, 1468, 1964, 2761, 4037, 5401, 5522, 8074, 10802, 11044, 16148, 21604, 30371, 44407, 59411, 60742, 88814, 92117, 118822, 121484, 123241, 177628, 180197, 184234, 237644, 246482, 360394, 368468, 492964, 720788, 1013287, 1355651, 1982167, 2026574, 2711302, 3964334, 4053148, 5422604, 7928668, 11146157, 14912161, 21803837, 22292314, 29824322, 43607674, 44584628, 45229447, 59648644, 87215348, 90458894, 180917788, 497523917, 995047834, 1990095668, 5472763087, 10945526174, 21891052348]

約数ペア:

[(1, 21891052348), (2, 10945526174), (4, 5472763087), (11, 1990095668), (22, 995047834), (44, 497523917), (121, 180917788), (242, 90458894), (251, 87215348), (367, 59648644), (484, 45229447), (491, 44584628), (502, 43607674), (734, 29824322), (982, 22292314), (1004, 21803837), (1468, 14912161), (1964, 11146157), (2761, 7928668), (4037, 5422604), (5401, 4053148), (5522, 3964334), (8074, 2711302), (10802, 2026574), (11044, 1982167), (16148, 1355651), (21604, 1013287), (30371, 720788), (44407, 492964), (59411, 368468), (60742, 360394), (88814, 246482), (92117, 237644), (118822, 184234), (121484, 180197), (123241, 177628)]