18980491761

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{271177}}^1$

素因数の和:271302

約数の個数: 48

約数和(自身を含む): 34519874688

約数和(自身を除く): 15539382927

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 231, 303, 693, 707, 909, 1111, 2121, 3333, 6363, 7777, 9999, 23331, 69993, 271177, 813531, 1898239, 2440593, 2982947, 5694717, 8948841, 17084151, 20880629, 26846523, 27388877, 62641887, 82166631, 187925661, 191722139, 246499893, 301277647, 575166417, 903832941, 1725499251, 2108943529, 2711498823, 6326830587, 18980491761]

約数ペア:

[(1, 18980491761), (3, 6326830587), (7, 2711498823), (9, 2108943529), (11, 1725499251), (21, 903832941), (33, 575166417), (63, 301277647), (77, 246499893), (99, 191722139), (101, 187925661), (231, 82166631), (303, 62641887), (693, 27388877), (707, 26846523), (909, 20880629), (1111, 17084151), (2121, 8948841), (3333, 5694717), (6363, 2982947), (7777, 2440593), (9999, 1898239), (23331, 813531), (69993, 271177)]