21935905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 28926720

約数和(自身を除く): 6990815

約数列:

[1, 5, 23, 53, 59, 61, 115, 265, 295, 305, 1219, 1357, 1403, 3127, 3233, 3599, 6095, 6785, 7015, 15635, 16165, 17995, 71921, 74359, 82777, 190747, 359605, 371795, 413885, 953735, 4387181, 21935905]

約数ペア:

[(1, 21935905), (5, 4387181), (23, 953735), (53, 413885), (59, 371795), (61, 359605), (115, 190747), (265, 82777), (295, 74359), (305, 71921), (1219, 17995), (1357, 16165), (1403, 15635), (3127, 7015), (3233, 6785), (3599, 6095)]