21268100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1321}}^1$

素因数の和:1365

約数の個数: 72

約数和(自身を含む): 55079808

約数和(自身を除く): 33811708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1321, 1610, 2300, 2642, 3220, 4025, 5284, 6605, 8050, 9247, 13210, 16100, 18494, 26420, 30383, 33025, 36988, 46235, 60766, 66050, 92470, 121532, 132100, 151915, 184940, 212681, 231175, 303830, 425362, 462350, 607660, 759575, 850724, 924700, 1063405, 1519150, 2126810, 3038300, 4253620, 5317025, 10634050, 21268100]

約数ペア:

[(1, 21268100), (2, 10634050), (4, 5317025), (5, 4253620), (7, 3038300), (10, 2126810), (14, 1519150), (20, 1063405), (23, 924700), (25, 850724), (28, 759575), (35, 607660), (46, 462350), (50, 425362), (70, 303830), (92, 231175), (100, 212681), (115, 184940), (140, 151915), (161, 132100), (175, 121532), (230, 92470), (322, 66050), (350, 60766), (460, 46235), (575, 36988), (644, 33025), (700, 30383), (805, 26420), (1150, 18494), (1321, 16100), (1610, 13210), (2300, 9247), (2642, 8050), (3220, 6605), (4025, 5284)]