21409384

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{479}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 41587200

約数和(自身を除く): 20177816

約数列:

[1, 2, 4, 8, 37, 74, 148, 151, 296, 302, 479, 604, 958, 1208, 1916, 3832, 5587, 11174, 17723, 22348, 35446, 44696, 70892, 72329, 141784, 144658, 289316, 578632, 2676173, 5352346, 10704692, 21409384]

約数ペア:

[(1, 21409384), (2, 10704692), (4, 5352346), (8, 2676173), (37, 578632), (74, 289316), (148, 144658), (151, 141784), (296, 72329), (302, 70892), (479, 44696), (604, 35446), (958, 22348), (1208, 17723), (1916, 11174), (3832, 5587)]