21959172

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:757

約数の個数: 72

約数和(自身を含む): 59970456

約数和(自身を除く): 38011284

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 53, 68, 102, 106, 153, 159, 204, 212, 306, 318, 477, 612, 636, 677, 901, 954, 1354, 1802, 1908, 2031, 2703, 2708, 3604, 4062, 5406, 6093, 8109, 8124, 10812, 11509, 12186, 16218, 23018, 24372, 32436, 34527, 35881, 46036, 69054, 71762, 103581, 107643, 138108, 143524, 207162, 215286, 322929, 414324, 430572, 609977, 645858, 1219954, 1291716, 1829931, 2439908, 3659862, 5489793, 7319724, 10979586, 21959172]

約数ペア:

[(1, 21959172), (2, 10979586), (3, 7319724), (4, 5489793), (6, 3659862), (9, 2439908), (12, 1829931), (17, 1291716), (18, 1219954), (34, 645858), (36, 609977), (51, 430572), (53, 414324), (68, 322929), (102, 215286), (106, 207162), (153, 143524), (159, 138108), (204, 107643), (212, 103581), (306, 71762), (318, 69054), (477, 46036), (612, 35881), (636, 34527), (677, 32436), (901, 24372), (954, 23018), (1354, 16218), (1802, 12186), (1908, 11509), (2031, 10812), (2703, 8124), (2708, 8109), (3604, 6093), (4062, 5406)]