221432728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 465743520

約数和(自身を除く): 244310792

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 197, 212, 241, 394, 424, 482, 583, 788, 964, 1166, 1576, 1928, 2167, 2332, 2651, 4334, 4664, 5302, 8668, 10441, 10604, 12773, 17336, 20882, 21208, 25546, 41764, 47477, 51092, 83528, 94954, 102184, 114851, 140503, 189908, 229702, 281006, 379816, 459404, 522247, 562012, 918808, 1044494, 1124024, 2088988, 2516281, 4177976, 5032562, 10065124, 20130248, 27679091, 55358182, 110716364, 221432728]

約数ペア:

[(1, 221432728), (2, 110716364), (4, 55358182), (8, 27679091), (11, 20130248), (22, 10065124), (44, 5032562), (53, 4177976), (88, 2516281), (106, 2088988), (197, 1124024), (212, 1044494), (241, 918808), (394, 562012), (424, 522247), (482, 459404), (583, 379816), (788, 281006), (964, 229702), (1166, 189908), (1576, 140503), (1928, 114851), (2167, 102184), (2332, 94954), (2651, 83528), (4334, 51092), (4664, 47477), (5302, 41764), (8668, 25546), (10441, 21208), (10604, 20882), (12773, 17336)]