21417060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50993}}^1$

素因数の和:51012

約数の個数: 48

約数和(自身を含む): 68535936

約数和(自身を除く): 47118876

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50993, 101986, 152979, 203972, 254965, 305958, 356951, 509930, 611916, 713902, 764895, 1019860, 1070853, 1427804, 1529790, 1784755, 2141706, 3059580, 3569510, 4283412, 5354265, 7139020, 10708530, 21417060]

約数ペア:

[(1, 21417060), (2, 10708530), (3, 7139020), (4, 5354265), (5, 4283412), (6, 3569510), (7, 3059580), (10, 2141706), (12, 1784755), (14, 1529790), (15, 1427804), (20, 1070853), (21, 1019860), (28, 764895), (30, 713902), (35, 611916), (42, 509930), (60, 356951), (70, 305958), (84, 254965), (105, 203972), (140, 152979), (210, 101986), (420, 50993)]