21881730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2953}}^1$

素因数の和:2995

約数の個数: 64

約数和(自身を含む): 59552640

約数和(自身を除く): 37670910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2953, 3705, 5906, 7410, 8859, 14765, 17718, 29530, 38389, 44295, 56107, 76778, 88590, 112214, 115167, 168321, 191945, 230334, 280535, 336642, 383890, 561070, 575835, 729391, 841605, 1151670, 1458782, 1683210, 2188173, 3646955, 4376346, 7293910, 10940865, 21881730]

約数ペア:

[(1, 21881730), (2, 10940865), (3, 7293910), (5, 4376346), (6, 3646955), (10, 2188173), (13, 1683210), (15, 1458782), (19, 1151670), (26, 841605), (30, 729391), (38, 575835), (39, 561070), (57, 383890), (65, 336642), (78, 280535), (95, 230334), (114, 191945), (130, 168321), (190, 115167), (195, 112214), (247, 88590), (285, 76778), (390, 56107), (494, 44295), (570, 38389), (741, 29530), (1235, 17718), (1482, 14765), (2470, 8859), (2953, 7410), (3705, 5906)]