21591180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9227}}^1$

素因数の和:9255

約数の個数: 72

約数和(自身を含む): 70538832

約数和(自身を除く): 48947652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9227, 18454, 27681, 36908, 46135, 55362, 83043, 92270, 110724, 119951, 138405, 166086, 184540, 239902, 276810, 332172, 359853, 415215, 479804, 553620, 599755, 719706, 830430, 1079559, 1199510, 1439412, 1660860, 1799265, 2159118, 2399020, 3598530, 4318236, 5397795, 7197060, 10795590, 21591180]

約数ペア:

[(1, 21591180), (2, 10795590), (3, 7197060), (4, 5397795), (5, 4318236), (6, 3598530), (9, 2399020), (10, 2159118), (12, 1799265), (13, 1660860), (15, 1439412), (18, 1199510), (20, 1079559), (26, 830430), (30, 719706), (36, 599755), (39, 553620), (45, 479804), (52, 415215), (60, 359853), (65, 332172), (78, 276810), (90, 239902), (117, 184540), (130, 166086), (156, 138405), (180, 119951), (195, 110724), (234, 92270), (260, 83043), (390, 55362), (468, 46135), (585, 36908), (780, 27681), (1170, 18454), (2340, 9227)]