21531910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{523}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 40746240

約数和(自身を除く): 19214330

約数列:

[1, 2, 5, 10, 23, 46, 115, 179, 230, 358, 523, 895, 1046, 1790, 2615, 4117, 5230, 8234, 12029, 20585, 24058, 41170, 60145, 93617, 120290, 187234, 468085, 936170, 2153191, 4306382, 10765955, 21531910]

約数ペア:

[(1, 21531910), (2, 10765955), (5, 4306382), (10, 2153191), (23, 936170), (46, 468085), (115, 187234), (179, 120290), (230, 93617), (358, 60145), (523, 41170), (895, 24058), (1046, 20585), (1790, 12029), (2615, 8234), (4117, 5230)]