21384530

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 39688704

約数和(自身を除く): 18304174

約数列:

[1, 2, 5, 10, 47, 94, 173, 235, 263, 346, 470, 526, 865, 1315, 1730, 2630, 8131, 12361, 16262, 24722, 40655, 45499, 61805, 81310, 90998, 123610, 227495, 454990, 2138453, 4276906, 10692265, 21384530]

約数ペア:

[(1, 21384530), (2, 10692265), (5, 4276906), (10, 2138453), (47, 454990), (94, 227495), (173, 123610), (235, 90998), (263, 81310), (346, 61805), (470, 45499), (526, 40655), (865, 24722), (1315, 16262), (1730, 12361), (2630, 8131)]