21746972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 21153508

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 89, 127, 148, 178, 254, 356, 481, 508, 962, 1157, 1651, 1924, 2314, 3293, 3302, 4628, 4699, 6586, 6604, 9398, 11303, 13172, 18796, 22606, 42809, 45212, 61087, 85618, 122174, 146939, 171236, 244348, 293878, 418211, 587756, 836422, 1672844, 5436743, 10873486, 21746972]

約数ペア:

[(1, 21746972), (2, 10873486), (4, 5436743), (13, 1672844), (26, 836422), (37, 587756), (52, 418211), (74, 293878), (89, 244348), (127, 171236), (148, 146939), (178, 122174), (254, 85618), (356, 61087), (481, 45212), (508, 42809), (962, 22606), (1157, 18796), (1651, 13172), (1924, 11303), (2314, 9398), (3293, 6604), (3302, 6586), (4628, 4699)]