221539012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 421344000

約数和(自身を除く): 199804988

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 109, 188, 218, 436, 569, 893, 1138, 1786, 2071, 2276, 3572, 4142, 5123, 8284, 10246, 10811, 20492, 21622, 26743, 43244, 53486, 62021, 97337, 106972, 124042, 194674, 248084, 389348, 508117, 1016234, 1178399, 2032468, 2356798, 2914987, 4713596, 5829974, 11659948, 55384753, 110769506, 221539012]

約数ペア:

[(1, 221539012), (2, 110769506), (4, 55384753), (19, 11659948), (38, 5829974), (47, 4713596), (76, 2914987), (94, 2356798), (109, 2032468), (188, 1178399), (218, 1016234), (436, 508117), (569, 389348), (893, 248084), (1138, 194674), (1786, 124042), (2071, 106972), (2276, 97337), (3572, 62021), (4142, 53486), (5123, 43244), (8284, 26743), (10246, 21622), (10811, 20492)]