21548340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10883}}^1$

素因数の和:10909

約数の個数: 72

約数和(自身を含む): 71311968

約数和(自身を除く): 49763628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10883, 21766, 32649, 43532, 54415, 65298, 97947, 108830, 119713, 130596, 163245, 195894, 217660, 239426, 326490, 359139, 391788, 478852, 489735, 598565, 652980, 718278, 979470, 1077417, 1197130, 1436556, 1795695, 1958940, 2154834, 2394260, 3591390, 4309668, 5387085, 7182780, 10774170, 21548340]

約数ペア:

[(1, 21548340), (2, 10774170), (3, 7182780), (4, 5387085), (5, 4309668), (6, 3591390), (9, 2394260), (10, 2154834), (11, 1958940), (12, 1795695), (15, 1436556), (18, 1197130), (20, 1077417), (22, 979470), (30, 718278), (33, 652980), (36, 598565), (44, 489735), (45, 478852), (55, 391788), (60, 359139), (66, 326490), (90, 239426), (99, 217660), (110, 195894), (132, 163245), (165, 130596), (180, 119713), (198, 108830), (220, 97947), (330, 65298), (396, 54415), (495, 43532), (660, 32649), (990, 21766), (1980, 10883)]