21639090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2851}}^1$

素因数の和:2895

約数の個数: 64

約数和(自身を含む): 59139072

約数和(自身を除く): 37499982

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2851, 3795, 5702, 7590, 8553, 14255, 17106, 28510, 31361, 42765, 62722, 65573, 85530, 94083, 131146, 156805, 188166, 196719, 313610, 327865, 393438, 470415, 655730, 721303, 940830, 983595, 1442606, 1967190, 2163909, 3606515, 4327818, 7213030, 10819545, 21639090]

約数ペア:

[(1, 21639090), (2, 10819545), (3, 7213030), (5, 4327818), (6, 3606515), (10, 2163909), (11, 1967190), (15, 1442606), (22, 983595), (23, 940830), (30, 721303), (33, 655730), (46, 470415), (55, 393438), (66, 327865), (69, 313610), (110, 196719), (115, 188166), (138, 156805), (165, 131146), (230, 94083), (253, 85530), (330, 65573), (345, 62722), (506, 42765), (690, 31361), (759, 28510), (1265, 17106), (1518, 14255), (2530, 8553), (2851, 7590), (3795, 5702)]