21033840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87641}}^1$

素因数の和:87657

約数の個数: 40

約数和(自身を含む): 65205648

約数和(自身を除く): 44171808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87641, 175282, 262923, 350564, 438205, 525846, 701128, 876410, 1051692, 1314615, 1402256, 1752820, 2103384, 2629230, 3505640, 4206768, 5258460, 7011280, 10516920, 21033840]

約数ペア:

[(1, 21033840), (2, 10516920), (3, 7011280), (4, 5258460), (5, 4206768), (6, 3505640), (8, 2629230), (10, 2103384), (12, 1752820), (15, 1402256), (16, 1314615), (20, 1051692), (24, 876410), (30, 701128), (40, 525846), (48, 438205), (60, 350564), (80, 262923), (120, 175282), (240, 87641)]