21669368

素因数分解:

$2^3\times 7^3\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 48600000

約数和(自身を除く): 26930632

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 149, 196, 212, 298, 343, 371, 392, 424, 596, 686, 742, 1043, 1192, 1372, 1484, 2086, 2597, 2744, 2968, 4172, 5194, 7301, 7897, 8344, 10388, 14602, 15794, 18179, 20776, 29204, 31588, 36358, 51107, 55279, 58408, 63176, 72716, 102214, 110558, 145432, 204428, 221116, 386953, 408856, 442232, 773906, 1547812, 2708671, 3095624, 5417342, 10834684, 21669368]

約数ペア:

[(1, 21669368), (2, 10834684), (4, 5417342), (7, 3095624), (8, 2708671), (14, 1547812), (28, 773906), (49, 442232), (53, 408856), (56, 386953), (98, 221116), (106, 204428), (149, 145432), (196, 110558), (212, 102214), (298, 72716), (343, 63176), (371, 58408), (392, 55279), (424, 51107), (596, 36358), (686, 31588), (742, 29204), (1043, 20776), (1192, 18179), (1372, 15794), (1484, 14602), (2086, 10388), (2597, 8344), (2744, 7897), (2968, 7301), (4172, 5194)]