20977932

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 54464256

約数和(自身を除く): 33486324

約数列:

[1, 2, 3, 4, 6, 12, 17, 23, 34, 46, 51, 68, 69, 92, 102, 138, 204, 263, 276, 289, 391, 526, 578, 782, 789, 867, 1052, 1156, 1173, 1564, 1578, 1734, 2346, 3156, 3468, 4471, 4692, 6049, 6647, 8942, 12098, 13294, 13413, 17884, 18147, 19941, 24196, 26588, 26826, 36294, 39882, 53652, 72588, 76007, 79764, 102833, 152014, 205666, 228021, 304028, 308499, 411332, 456042, 616998, 912084, 1233996, 1748161, 3496322, 5244483, 6992644, 10488966, 20977932]

約数ペア:

[(1, 20977932), (2, 10488966), (3, 6992644), (4, 5244483), (6, 3496322), (12, 1748161), (17, 1233996), (23, 912084), (34, 616998), (46, 456042), (51, 411332), (68, 308499), (69, 304028), (92, 228021), (102, 205666), (138, 152014), (204, 102833), (263, 79764), (276, 76007), (289, 72588), (391, 53652), (526, 39882), (578, 36294), (782, 26826), (789, 26588), (867, 24196), (1052, 19941), (1156, 18147), (1173, 17884), (1564, 13413), (1578, 13294), (1734, 12098), (2346, 8942), (3156, 6647), (3468, 6049), (4471, 4692)]