21030100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2311}}^1$

素因数の和:2345

約数の個数: 72

約数和(自身を含む): 56190848

約数和(自身を除く): 35160748

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 2311, 4550, 4622, 9100, 9244, 11555, 16177, 23110, 30043, 32354, 46220, 57775, 60086, 64708, 80885, 115550, 120172, 150215, 161770, 210301, 231100, 300430, 323540, 404425, 420602, 600860, 751075, 808850, 841204, 1051505, 1502150, 1617700, 2103010, 3004300, 4206020, 5257525, 10515050, 21030100]

約数ペア:

[(1, 21030100), (2, 10515050), (4, 5257525), (5, 4206020), (7, 3004300), (10, 2103010), (13, 1617700), (14, 1502150), (20, 1051505), (25, 841204), (26, 808850), (28, 751075), (35, 600860), (50, 420602), (52, 404425), (65, 323540), (70, 300430), (91, 231100), (100, 210301), (130, 161770), (140, 150215), (175, 120172), (182, 115550), (260, 80885), (325, 64708), (350, 60086), (364, 57775), (455, 46220), (650, 32354), (700, 30043), (910, 23110), (1300, 16177), (1820, 11555), (2275, 9244), (2311, 9100), (4550, 4622)]