19581688

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 25657352

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 67, 68, 119, 134, 136, 238, 268, 307, 469, 476, 536, 614, 938, 952, 1139, 1228, 1876, 2149, 2278, 2456, 3752, 4298, 4556, 5219, 7973, 8596, 9112, 10438, 15946, 17192, 20569, 20876, 31892, 36533, 41138, 41752, 63784, 73066, 82276, 143983, 146132, 164552, 287966, 292264, 349673, 575932, 699346, 1151864, 1398692, 2447711, 2797384, 4895422, 9790844, 19581688]

約数ペア:

[(1, 19581688), (2, 9790844), (4, 4895422), (7, 2797384), (8, 2447711), (14, 1398692), (17, 1151864), (28, 699346), (34, 575932), (56, 349673), (67, 292264), (68, 287966), (119, 164552), (134, 146132), (136, 143983), (238, 82276), (268, 73066), (307, 63784), (469, 41752), (476, 41138), (536, 36533), (614, 31892), (938, 20876), (952, 20569), (1139, 17192), (1228, 15946), (1876, 10438), (2149, 9112), (2278, 8596), (2456, 7973), (3752, 5219), (4298, 4556)]