21730998

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 27413322

約数列:

[1, 2, 3, 6, 17, 23, 34, 46, 51, 59, 69, 102, 118, 138, 157, 177, 314, 354, 391, 471, 782, 942, 1003, 1173, 1357, 2006, 2346, 2669, 2714, 3009, 3611, 4071, 5338, 6018, 7222, 8007, 8142, 9263, 10833, 16014, 18526, 21666, 23069, 27789, 46138, 55578, 61387, 69207, 122774, 138414, 157471, 184161, 213049, 314942, 368322, 426098, 472413, 639147, 944826, 1278294, 3621833, 7243666, 10865499, 21730998]

約数ペア:

[(1, 21730998), (2, 10865499), (3, 7243666), (6, 3621833), (17, 1278294), (23, 944826), (34, 639147), (46, 472413), (51, 426098), (59, 368322), (69, 314942), (102, 213049), (118, 184161), (138, 157471), (157, 138414), (177, 122774), (314, 69207), (354, 61387), (391, 55578), (471, 46138), (782, 27789), (942, 23069), (1003, 21666), (1173, 18526), (1357, 16014), (2006, 10833), (2346, 9263), (2669, 8142), (2714, 8007), (3009, 7222), (3611, 6018), (4071, 5338)]