21749504

素因数分解:

$2^8\times 7^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 50772960

約数和(自身を除く): 29023456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 229, 256, 371, 424, 448, 458, 742, 848, 896, 916, 1484, 1603, 1696, 1792, 1832, 2968, 3206, 3392, 3664, 5936, 6412, 6784, 7328, 11872, 12137, 12824, 13568, 14656, 23744, 24274, 25648, 29312, 47488, 48548, 51296, 58624, 84959, 94976, 97096, 102592, 169918, 194192, 205184, 339836, 388384, 410368, 679672, 776768, 1359344, 1553536, 2718688, 3107072, 5437376, 10874752, 21749504]

約数ペア:

[(1, 21749504), (2, 10874752), (4, 5437376), (7, 3107072), (8, 2718688), (14, 1553536), (16, 1359344), (28, 776768), (32, 679672), (53, 410368), (56, 388384), (64, 339836), (106, 205184), (112, 194192), (128, 169918), (212, 102592), (224, 97096), (229, 94976), (256, 84959), (371, 58624), (424, 51296), (448, 48548), (458, 47488), (742, 29312), (848, 25648), (896, 24274), (916, 23744), (1484, 14656), (1603, 13568), (1696, 12824), (1792, 12137), (1832, 11872), (2968, 7328), (3206, 6784), (3392, 6412), (3664, 5936)]