21257550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:602

約数の個数: 72

約数和(自身を含む): 57819216

約数和(自身を除く): 36561666

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 97, 150, 194, 225, 291, 450, 485, 487, 582, 873, 970, 974, 1455, 1461, 1746, 2425, 2435, 2910, 2922, 4365, 4383, 4850, 4870, 7275, 7305, 8730, 8766, 12175, 14550, 14610, 21825, 21915, 24350, 36525, 43650, 43830, 47239, 73050, 94478, 109575, 141717, 219150, 236195, 283434, 425151, 472390, 708585, 850302, 1180975, 1417170, 2125755, 2361950, 3542925, 4251510, 7085850, 10628775, 21257550]

約数ペア:

[(1, 21257550), (2, 10628775), (3, 7085850), (5, 4251510), (6, 3542925), (9, 2361950), (10, 2125755), (15, 1417170), (18, 1180975), (25, 850302), (30, 708585), (45, 472390), (50, 425151), (75, 283434), (90, 236195), (97, 219150), (150, 141717), (194, 109575), (225, 94478), (291, 73050), (450, 47239), (485, 43830), (487, 43650), (582, 36525), (873, 24350), (970, 21915), (974, 21825), (1455, 14610), (1461, 14550), (1746, 12175), (2425, 8766), (2435, 8730), (2910, 7305), (2922, 7275), (4365, 4870), (4383, 4850)]