21167139126

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{646957}}^1$

素因数の和:647029

約数の個数: 64

約数和(自身を含む): 52170693120

約数和(自身を除く): 31003553994

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 41, 42, 57, 82, 114, 123, 133, 246, 266, 287, 399, 574, 779, 798, 861, 1558, 1722, 2337, 4674, 5453, 10906, 16359, 32718, 646957, 1293914, 1940871, 3881742, 4528699, 9057398, 12292183, 13586097, 24584366, 26525237, 27172194, 36876549, 53050474, 73753098, 79575711, 86045281, 159151422, 172090562, 185676659, 258135843, 371353318, 503979503, 516271686, 557029977, 1007959006, 1114059954, 1511938509, 3023877018, 3527856521, 7055713042, 10583569563, 21167139126]

約数ペア:

[(1, 21167139126), (2, 10583569563), (3, 7055713042), (6, 3527856521), (7, 3023877018), (14, 1511938509), (19, 1114059954), (21, 1007959006), (38, 557029977), (41, 516271686), (42, 503979503), (57, 371353318), (82, 258135843), (114, 185676659), (123, 172090562), (133, 159151422), (246, 86045281), (266, 79575711), (287, 73753098), (399, 53050474), (574, 36876549), (779, 27172194), (798, 26525237), (861, 24584366), (1558, 13586097), (1722, 12292183), (2337, 9057398), (4674, 4528699), (5453, 3881742), (10906, 1940871), (16359, 1293914), (32718, 646957)]