21239520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{44249}}^1$

素因数の和:44267

約数の個数: 48

約数和(自身を含む): 66906000

約数和(自身を除く): 45666480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 44249, 88498, 132747, 176996, 221245, 265494, 353992, 442490, 530988, 663735, 707984, 884980, 1061976, 1327470, 1415968, 1769960, 2123952, 2654940, 3539920, 4247904, 5309880, 7079840, 10619760, 21239520]

約数ペア:

[(1, 21239520), (2, 10619760), (3, 7079840), (4, 5309880), (5, 4247904), (6, 3539920), (8, 2654940), (10, 2123952), (12, 1769960), (15, 1415968), (16, 1327470), (20, 1061976), (24, 884980), (30, 707984), (32, 663735), (40, 530988), (48, 442490), (60, 353992), (80, 265494), (96, 221245), (120, 176996), (160, 132747), (240, 88498), (480, 44249)]