221011028

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2521}}^1$

素因数の和:2664

約数の個数: 48

約数和(自身を含む): 460981248

約数和(自身を除く): 239970220

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 101, 124, 202, 217, 404, 434, 707, 868, 1414, 2521, 2828, 3131, 5042, 6262, 10084, 12524, 17647, 21917, 35294, 43834, 70588, 78151, 87668, 156302, 254621, 312604, 509242, 547057, 1018484, 1094114, 1782347, 2188228, 3564694, 7129388, 7893251, 15786502, 31573004, 55252757, 110505514, 221011028]

約数ペア:

[(1, 221011028), (2, 110505514), (4, 55252757), (7, 31573004), (14, 15786502), (28, 7893251), (31, 7129388), (62, 3564694), (101, 2188228), (124, 1782347), (202, 1094114), (217, 1018484), (404, 547057), (434, 509242), (707, 312604), (868, 254621), (1414, 156302), (2521, 87668), (2828, 78151), (3131, 70588), (5042, 43834), (6262, 35294), (10084, 21917), (12524, 17647)]