About the Number

21723390

21723389 ← → 21723391

2進数表記:1010010110111100011111110

漢数字表記:二千百七十二万三千三百九十

素因数分解:

2 1 × 3 4 × 5 1 × 13 1 × 2063 1

素因数の和:2095
約数の個数: 80
約数和(自身を含む): 62935488
約数和(自身を除く): 41212098

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2063, 2106, 3510, 4126, 5265, 6189, 10315, 10530, 12378, 18567, 20630, 26819, 30945, 37134, 53638, 55701, 61890, 80457, 92835, 111402, 134095, 160914, 167103, 185670, 241371, 268190, 278505, 334206, 402285, 482742, 557010, 724113, 804570, 835515, 1206855, 1448226, 1671030, 2172339, 2413710, 3620565, 4344678, 7241130, 10861695, 21723390]

約数ペア:
[(1, 21723390), (2, 10861695), (3, 7241130), (5, 4344678), (6, 3620565), (9, 2413710), (10, 2172339), (13, 1671030), (15, 1448226), (18, 1206855), (26, 835515), (27, 804570), (30, 724113), (39, 557010), (45, 482742), (54, 402285), (65, 334206), (78, 278505), (81, 268190), (90, 241371), (117, 185670), (130, 167103), (135, 160914), (162, 134095), (195, 111402), (234, 92835), (270, 80457), (351, 61890), (390, 55701), (405, 53638), (585, 37134), (702, 30945), (810, 26819), (1053, 20630), (1170, 18567), (1755, 12378), (2063, 10530), (2106, 10315), (3510, 6189), (4126, 5265)]

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