21037380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3853}}^1$

素因数の和:3885

約数の個数: 96

約数和(自身を含む): 72516864

約数和(自身を除く): 51479484

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3853, 5460, 7706, 11559, 15412, 19265, 23118, 26971, 38530, 46236, 50089, 53942, 57795, 77060, 80913, 100178, 107884, 115590, 134855, 150267, 161826, 200356, 231180, 250445, 269710, 300534, 323652, 350623, 404565, 500890, 539420, 601068, 701246, 751335, 809130, 1001780, 1051869, 1402492, 1502670, 1618260, 1753115, 2103738, 3005340, 3506230, 4207476, 5259345, 7012460, 10518690, 21037380]

約数ペア:

[(1, 21037380), (2, 10518690), (3, 7012460), (4, 5259345), (5, 4207476), (6, 3506230), (7, 3005340), (10, 2103738), (12, 1753115), (13, 1618260), (14, 1502670), (15, 1402492), (20, 1051869), (21, 1001780), (26, 809130), (28, 751335), (30, 701246), (35, 601068), (39, 539420), (42, 500890), (52, 404565), (60, 350623), (65, 323652), (70, 300534), (78, 269710), (84, 250445), (91, 231180), (105, 200356), (130, 161826), (140, 150267), (156, 134855), (182, 115590), (195, 107884), (210, 100178), (260, 80913), (273, 77060), (364, 57795), (390, 53942), (420, 50089), (455, 46236), (546, 38530), (780, 26971), (910, 23118), (1092, 19265), (1365, 15412), (1820, 11559), (2730, 7706), (3853, 5460)]