21453090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 55175040

約数和(自身を除く): 33721950

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 61, 95, 114, 122, 183, 190, 285, 305, 366, 570, 610, 617, 915, 1159, 1234, 1830, 1851, 2318, 3085, 3477, 3702, 5795, 6170, 6954, 9255, 11590, 11723, 17385, 18510, 23446, 34770, 35169, 37637, 58615, 70338, 75274, 112911, 117230, 175845, 188185, 225822, 351690, 376370, 564555, 715103, 1129110, 1430206, 2145309, 3575515, 4290618, 7151030, 10726545, 21453090]

約数ペア:

[(1, 21453090), (2, 10726545), (3, 7151030), (5, 4290618), (6, 3575515), (10, 2145309), (15, 1430206), (19, 1129110), (30, 715103), (38, 564555), (57, 376370), (61, 351690), (95, 225822), (114, 188185), (122, 175845), (183, 117230), (190, 112911), (285, 75274), (305, 70338), (366, 58615), (570, 37637), (610, 35169), (617, 34770), (915, 23446), (1159, 18510), (1234, 17385), (1830, 11723), (1851, 11590), (2318, 9255), (3085, 6954), (3477, 6170), (3702, 5795)]