21660950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{151}}^2$

素因数の和:333

約数の個数: 36

約数和(自身を含む): 42692580

約数和(自身を除く): 21031630

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 151, 190, 302, 475, 755, 950, 1510, 2869, 3775, 5738, 7550, 14345, 22801, 28690, 45602, 71725, 114005, 143450, 228010, 433219, 570025, 866438, 1140050, 2166095, 4332190, 10830475, 21660950]

約数ペア:

[(1, 21660950), (2, 10830475), (5, 4332190), (10, 2166095), (19, 1140050), (25, 866438), (38, 570025), (50, 433219), (95, 228010), (151, 143450), (190, 114005), (302, 71725), (475, 45602), (755, 28690), (950, 22801), (1510, 14345), (2869, 7550), (3775, 5738)]