21091492816

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{147139}}^1$

素因数の和:147212

約数の個数: 60

約数和(自身を含む): 44810604160

約数和(自身を除く): 23719111344

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 289, 496, 527, 578, 1054, 1156, 2108, 2312, 4216, 4624, 8432, 8959, 17918, 35836, 71672, 143344, 147139, 294278, 588556, 1177112, 2354224, 2501363, 4561309, 5002726, 9122618, 10005452, 18245236, 20010904, 36490472, 40021808, 42523171, 72980944, 77542253, 85046342, 155084506, 170092684, 310169012, 340185368, 620338024, 680370736, 1240676048, 1318218301, 2636436602, 5272873204, 10545746408, 21091492816]

約数ペア:

[(1, 21091492816), (2, 10545746408), (4, 5272873204), (8, 2636436602), (16, 1318218301), (17, 1240676048), (31, 680370736), (34, 620338024), (62, 340185368), (68, 310169012), (124, 170092684), (136, 155084506), (248, 85046342), (272, 77542253), (289, 72980944), (496, 42523171), (527, 40021808), (578, 36490472), (1054, 20010904), (1156, 18245236), (2108, 10005452), (2312, 9122618), (4216, 5002726), (4624, 4561309), (8432, 2501363), (8959, 2354224), (17918, 1177112), (35836, 588556), (71672, 294278), (143344, 147139)]