21423810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:603

約数の個数: 64

約数和(自身を含む): 54639360

約数和(自身を除く): 33215550

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 305, 345, 366, 509, 610, 690, 915, 1018, 1403, 1527, 1830, 2545, 2806, 3054, 4209, 5090, 7015, 7635, 8418, 11707, 14030, 15270, 21045, 23414, 31049, 35121, 42090, 58535, 62098, 70242, 93147, 117070, 155245, 175605, 186294, 310490, 351210, 465735, 714127, 931470, 1428254, 2142381, 3570635, 4284762, 7141270, 10711905, 21423810]

約数ペア:

[(1, 21423810), (2, 10711905), (3, 7141270), (5, 4284762), (6, 3570635), (10, 2142381), (15, 1428254), (23, 931470), (30, 714127), (46, 465735), (61, 351210), (69, 310490), (115, 186294), (122, 175605), (138, 155245), (183, 117070), (230, 93147), (305, 70242), (345, 62098), (366, 58535), (509, 42090), (610, 35121), (690, 31049), (915, 23414), (1018, 21045), (1403, 15270), (1527, 14030), (1830, 11707), (2545, 8418), (2806, 7635), (3054, 7015), (4209, 5090)]