31221996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 84869568

約数和(自身を除く): 53647572

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 61, 68, 78, 102, 122, 156, 183, 193, 204, 221, 244, 366, 386, 442, 579, 663, 732, 772, 793, 884, 1037, 1158, 1326, 1586, 2074, 2316, 2379, 2509, 2652, 3111, 3172, 3281, 4148, 4758, 5018, 6222, 6562, 7527, 9516, 9843, 10036, 11773, 12444, 13124, 13481, 15054, 19686, 23546, 26962, 30108, 35319, 39372, 40443, 42653, 47092, 53924, 70638, 80886, 85306, 127959, 141276, 153049, 161772, 170612, 200141, 255918, 306098, 400282, 459147, 511836, 600423, 612196, 800564, 918294, 1200846, 1836588, 2401692, 2601833, 5203666, 7805499, 10407332, 15610998, 31221996]

約数ペア:

[(1, 31221996), (2, 15610998), (3, 10407332), (4, 7805499), (6, 5203666), (12, 2601833), (13, 2401692), (17, 1836588), (26, 1200846), (34, 918294), (39, 800564), (51, 612196), (52, 600423), (61, 511836), (68, 459147), (78, 400282), (102, 306098), (122, 255918), (156, 200141), (183, 170612), (193, 161772), (204, 153049), (221, 141276), (244, 127959), (366, 85306), (386, 80886), (442, 70638), (579, 53924), (663, 47092), (732, 42653), (772, 40443), (793, 39372), (884, 35319), (1037, 30108), (1158, 26962), (1326, 23546), (1586, 19686), (2074, 15054), (2316, 13481), (2379, 13124), (2509, 12444), (2652, 11773), (3111, 10036), (3172, 9843), (3281, 9516), (4148, 7527), (4758, 6562), (5018, 6222)]