21520014

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 25758066

約数列:

[1, 2, 3, 6, 31, 37, 53, 59, 62, 74, 93, 106, 111, 118, 159, 177, 186, 222, 318, 354, 1147, 1643, 1829, 1961, 2183, 2294, 3127, 3286, 3441, 3658, 3922, 4366, 4929, 5487, 5883, 6254, 6549, 6882, 9381, 9858, 10974, 11766, 13098, 18762, 60791, 67673, 96937, 115699, 121582, 135346, 182373, 193874, 203019, 231398, 290811, 347097, 364746, 406038, 581622, 694194, 3586669, 7173338, 10760007, 21520014]

約数ペア:

[(1, 21520014), (2, 10760007), (3, 7173338), (6, 3586669), (31, 694194), (37, 581622), (53, 406038), (59, 364746), (62, 347097), (74, 290811), (93, 231398), (106, 203019), (111, 193874), (118, 182373), (159, 135346), (177, 121582), (186, 115699), (222, 96937), (318, 67673), (354, 60791), (1147, 18762), (1643, 13098), (1829, 11766), (1961, 10974), (2183, 9858), (2294, 9381), (3127, 6882), (3286, 6549), (3441, 6254), (3658, 5883), (3922, 5487), (4366, 4929)]