21519367030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{39509}}^1$

素因数の和:39805

約数の個数: 64

約数和(自身を含む): 45879644160

約数和(自身を除く): 24360277130

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 251, 310, 434, 502, 1085, 1255, 1757, 2170, 2510, 3514, 7781, 8785, 15562, 17570, 38905, 39509, 54467, 77810, 79018, 108934, 197545, 272335, 276563, 395090, 544670, 553126, 1224779, 1382815, 2449558, 2765630, 6123895, 8573453, 9916759, 12247790, 17146906, 19833518, 42867265, 49583795, 69417313, 85734530, 99167590, 138834626, 307419529, 347086565, 614839058, 694173130, 1537097645, 2151936703, 3074195290, 4303873406, 10759683515, 21519367030]

約数ペア:

[(1, 21519367030), (2, 10759683515), (5, 4303873406), (7, 3074195290), (10, 2151936703), (14, 1537097645), (31, 694173130), (35, 614839058), (62, 347086565), (70, 307419529), (155, 138834626), (217, 99167590), (251, 85734530), (310, 69417313), (434, 49583795), (502, 42867265), (1085, 19833518), (1255, 17146906), (1757, 12247790), (2170, 9916759), (2510, 8573453), (3514, 6123895), (7781, 2765630), (8785, 2449558), (15562, 1382815), (17570, 1224779), (38905, 553126), (39509, 544670), (54467, 395090), (77810, 276563), (79018, 272335), (108934, 197545)]