21238920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58997}}^1$

素因数の和:59014

約数の個数: 48

約数和(自身を含む): 69027660

約数和(自身を除く): 47788740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58997, 117994, 176991, 235988, 294985, 353982, 471976, 530973, 589970, 707964, 884955, 1061946, 1179940, 1415928, 1769910, 2123892, 2359880, 2654865, 3539820, 4247784, 5309730, 7079640, 10619460, 21238920]

約数ペア:

[(1, 21238920), (2, 10619460), (3, 7079640), (4, 5309730), (5, 4247784), (6, 3539820), (8, 2654865), (9, 2359880), (10, 2123892), (12, 1769910), (15, 1415928), (18, 1179940), (20, 1061946), (24, 884955), (30, 707964), (36, 589970), (40, 530973), (45, 471976), (60, 353982), (72, 294985), (90, 235988), (120, 176991), (180, 117994), (360, 58997)]