About the Number

21488220

21488219 ← → 21488221

2進数表記:1010001111110001001011100

漢数字表記:二千百四十八万八千二百二十

素因数分解:

2 2 × 3 3 × 5 1 × 13 1 × 3061 1

素因数の和:3092
約数の個数: 96
約数和(自身を含む): 72018240
約数和(自身を除く): 50530020

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 3061, 3510, 6122, 7020, 9183, 12244, 15305, 18366, 27549, 30610, 36732, 39793, 45915, 55098, 61220, 79586, 82647, 91830, 110196, 119379, 137745, 159172, 165294, 183660, 198965, 238758, 275490, 330588, 358137, 397930, 413235, 477516, 550980, 596895, 716274, 795860, 826470, 1074411, 1193790, 1432548, 1652940, 1790685, 2148822, 2387580, 3581370, 4297644, 5372055, 7162740, 10744110, 21488220]

約数ペア:
[(1, 21488220), (2, 10744110), (3, 7162740), (4, 5372055), (5, 4297644), (6, 3581370), (9, 2387580), (10, 2148822), (12, 1790685), (13, 1652940), (15, 1432548), (18, 1193790), (20, 1074411), (26, 826470), (27, 795860), (30, 716274), (36, 596895), (39, 550980), (45, 477516), (52, 413235), (54, 397930), (60, 358137), (65, 330588), (78, 275490), (90, 238758), (108, 198965), (117, 183660), (130, 165294), (135, 159172), (156, 137745), (180, 119379), (195, 110196), (234, 91830), (260, 82647), (270, 79586), (351, 61220), (390, 55098), (468, 45915), (540, 39793), (585, 36732), (702, 30610), (780, 27549), (1170, 18366), (1404, 15305), (1755, 12244), (2340, 9183), (3061, 7020), (3510, 6122)]

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