21548452

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 20364188

約数列:

[1, 2, 4, 17, 34, 41, 59, 68, 82, 118, 131, 164, 236, 262, 524, 697, 1003, 1394, 2006, 2227, 2419, 2788, 4012, 4454, 4838, 5371, 7729, 8908, 9676, 10742, 15458, 21484, 30916, 41123, 82246, 91307, 131393, 164492, 182614, 262786, 316889, 365228, 525572, 633778, 1267556, 5387113, 10774226, 21548452]

約数ペア:

[(1, 21548452), (2, 10774226), (4, 5387113), (17, 1267556), (34, 633778), (41, 525572), (59, 365228), (68, 316889), (82, 262786), (118, 182614), (131, 164492), (164, 131393), (236, 91307), (262, 82246), (524, 41123), (697, 30916), (1003, 21484), (1394, 15458), (2006, 10742), (2227, 9676), (2419, 8908), (2788, 7729), (4012, 5371), (4454, 4838)]